21769605

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 47174400

約数和(自身を除く): 25404795

約数列:

[1, 3, 5, 9, 11, 13, 15, 17, 33, 39, 45, 51, 55, 65, 85, 99, 117, 143, 153, 165, 187, 195, 199, 221, 255, 429, 495, 561, 585, 597, 663, 715, 765, 935, 995, 1105, 1287, 1683, 1791, 1989, 2145, 2189, 2431, 2587, 2805, 2985, 3315, 3383, 6435, 6567, 7293, 7761, 8415, 8955, 9945, 10149, 10945, 12155, 12935, 16915, 19701, 21879, 23283, 28457, 30447, 32835, 36465, 37213, 38805, 43979, 50745, 85371, 98505, 109395, 111639, 116415, 131937, 142285, 152235, 186065, 219895, 256113, 334917, 395811, 426855, 483769, 558195, 659685, 1280565, 1451307, 1674585, 1979055, 2418845, 4353921, 7256535, 21769605]

約数ペア:

[(1, 21769605), (3, 7256535), (5, 4353921), (9, 2418845), (11, 1979055), (13, 1674585), (15, 1451307), (17, 1280565), (33, 659685), (39, 558195), (45, 483769), (51, 426855), (55, 395811), (65, 334917), (85, 256113), (99, 219895), (117, 186065), (143, 152235), (153, 142285), (165, 131937), (187, 116415), (195, 111639), (199, 109395), (221, 98505), (255, 85371), (429, 50745), (495, 43979), (561, 38805), (585, 37213), (597, 36465), (663, 32835), (715, 30447), (765, 28457), (935, 23283), (995, 21879), (1105, 19701), (1287, 16915), (1683, 12935), (1791, 12155), (1989, 10945), (2145, 10149), (2189, 9945), (2431, 8955), (2587, 8415), (2805, 7761), (2985, 7293), (3315, 6567), (3383, 6435)]