21187440

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{577}}^1$

素因数の和:616

約数の個数: 160

約数和(自身を含む): 77405760

約数和(自身を除く): 56218320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 48, 51, 54, 60, 68, 72, 80, 85, 90, 102, 108, 120, 135, 136, 144, 153, 170, 180, 204, 216, 240, 255, 270, 272, 306, 340, 360, 408, 432, 459, 510, 540, 577, 612, 680, 720, 765, 816, 918, 1020, 1080, 1154, 1224, 1360, 1530, 1731, 1836, 2040, 2160, 2295, 2308, 2448, 2885, 3060, 3462, 3672, 4080, 4590, 4616, 5193, 5770, 6120, 6924, 7344, 8655, 9180, 9232, 9809, 10386, 11540, 12240, 13848, 15579, 17310, 18360, 19618, 20772, 23080, 25965, 27696, 29427, 31158, 34620, 36720, 39236, 41544, 46160, 49045, 51930, 58854, 62316, 69240, 77895, 78472, 83088, 88281, 98090, 103860, 117708, 124632, 138480, 147135, 155790, 156944, 176562, 196180, 207720, 235416, 249264, 264843, 294270, 311580, 353124, 392360, 415440, 441405, 470832, 529686, 588540, 623160, 706248, 784720, 882810, 1059372, 1177080, 1246320, 1324215, 1412496, 1765620, 2118744, 2354160, 2648430, 3531240, 4237488, 5296860, 7062480, 10593720, 21187440]

約数ペア:

[(1, 21187440), (2, 10593720), (3, 7062480), (4, 5296860), (5, 4237488), (6, 3531240), (8, 2648430), (9, 2354160), (10, 2118744), (12, 1765620), (15, 1412496), (16, 1324215), (17, 1246320), (18, 1177080), (20, 1059372), (24, 882810), (27, 784720), (30, 706248), (34, 623160), (36, 588540), (40, 529686), (45, 470832), (48, 441405), (51, 415440), (54, 392360), (60, 353124), (68, 311580), (72, 294270), (80, 264843), (85, 249264), (90, 235416), (102, 207720), (108, 196180), (120, 176562), (135, 156944), (136, 155790), (144, 147135), (153, 138480), (170, 124632), (180, 117708), (204, 103860), (216, 98090), (240, 88281), (255, 83088), (270, 78472), (272, 77895), (306, 69240), (340, 62316), (360, 58854), (408, 51930), (432, 49045), (459, 46160), (510, 41544), (540, 39236), (577, 36720), (612, 34620), (680, 31158), (720, 29427), (765, 27696), (816, 25965), (918, 23080), (1020, 20772), (1080, 19618), (1154, 18360), (1224, 17310), (1360, 15579), (1530, 13848), (1731, 12240), (1836, 11540), (2040, 10386), (2160, 9809), (2295, 9232), (2308, 9180), (2448, 8655), (2885, 7344), (3060, 6924), (3462, 6120), (3672, 5770), (4080, 5193), (4590, 4616)]