20213254845

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{2273}}^1$

素因数の和:2444

約数の個数: 144

約数和(自身を含む): 42260652720

約数和(自身を除く): 22047397875

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 49, 63, 105, 109, 111, 147, 185, 245, 259, 315, 327, 333, 441, 545, 555, 735, 763, 777, 981, 1295, 1635, 1665, 1813, 2205, 2273, 2289, 2331, 3815, 3885, 4033, 4905, 5341, 5439, 6819, 6867, 9065, 11365, 11445, 11655, 12099, 15911, 16023, 16317, 20165, 20457, 26705, 27195, 28231, 34095, 34335, 36297, 47733, 48069, 60495, 79555, 80115, 81585, 84101, 84693, 102285, 111377, 141155, 143199, 181485, 197617, 238665, 240345, 247757, 252303, 254079, 334131, 420505, 423465, 556885, 588707, 592851, 715995, 743271, 756909, 988085, 1002393, 1238785, 1261515, 1270395, 1670655, 1734299, 1766121, 1778553, 2229813, 2943535, 2964255, 3716355, 3784545, 4120949, 5011965, 5202897, 5298363, 8671495, 8830605, 8892765, 9167009, 11149065, 12140093, 12362847, 15608691, 20604745, 26014485, 26491815, 27501027, 36420279, 37088541, 45835045, 60700465, 61814235, 64169063, 78043455, 82503081, 109260837, 137505135, 182101395, 185442705, 192507189, 320845315, 412515405, 449183441, 546304185, 577521567, 962535945, 1347550323, 2245917205, 2887607835, 4042650969, 6737751615, 20213254845]

約数ペア:

[(1, 20213254845), (3, 6737751615), (5, 4042650969), (7, 2887607835), (9, 2245917205), (15, 1347550323), (21, 962535945), (35, 577521567), (37, 546304185), (45, 449183441), (49, 412515405), (63, 320845315), (105, 192507189), (109, 185442705), (111, 182101395), (147, 137505135), (185, 109260837), (245, 82503081), (259, 78043455), (315, 64169063), (327, 61814235), (333, 60700465), (441, 45835045), (545, 37088541), (555, 36420279), (735, 27501027), (763, 26491815), (777, 26014485), (981, 20604745), (1295, 15608691), (1635, 12362847), (1665, 12140093), (1813, 11149065), (2205, 9167009), (2273, 8892765), (2289, 8830605), (2331, 8671495), (3815, 5298363), (3885, 5202897), (4033, 5011965), (4905, 4120949), (5341, 3784545), (5439, 3716355), (6819, 2964255), (6867, 2943535), (9065, 2229813), (11365, 1778553), (11445, 1766121), (11655, 1734299), (12099, 1670655), (15911, 1270395), (16023, 1261515), (16317, 1238785), (20165, 1002393), (20457, 988085), (26705, 756909), (27195, 743271), (28231, 715995), (34095, 592851), (34335, 588707), (36297, 556885), (47733, 423465), (48069, 420505), (60495, 334131), (79555, 254079), (80115, 252303), (81585, 247757), (84101, 240345), (84693, 238665), (102285, 197617), (111377, 181485), (141155, 143199)]