21998350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 48854016

約数和(自身を除く): 26855666

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 37, 46, 47, 50, 55, 74, 94, 110, 115, 185, 230, 235, 253, 275, 370, 407, 470, 506, 517, 550, 575, 814, 851, 925, 1034, 1081, 1150, 1175, 1265, 1702, 1739, 1850, 2035, 2162, 2350, 2530, 2585, 3478, 4070, 4255, 5170, 5405, 6325, 8510, 8695, 9361, 10175, 10810, 11891, 12650, 12925, 17390, 18722, 19129, 20350, 21275, 23782, 25850, 27025, 38258, 39997, 42550, 43475, 46805, 54050, 59455, 79994, 86950, 93610, 95645, 118910, 191290, 199985, 234025, 297275, 399970, 439967, 468050, 478225, 594550, 879934, 956450, 999925, 1999850, 2199835, 4399670, 10999175, 21998350]

約数ペア:

[(1, 21998350), (2, 10999175), (5, 4399670), (10, 2199835), (11, 1999850), (22, 999925), (23, 956450), (25, 879934), (37, 594550), (46, 478225), (47, 468050), (50, 439967), (55, 399970), (74, 297275), (94, 234025), (110, 199985), (115, 191290), (185, 118910), (230, 95645), (235, 93610), (253, 86950), (275, 79994), (370, 59455), (407, 54050), (470, 46805), (506, 43475), (517, 42550), (550, 39997), (575, 38258), (814, 27025), (851, 25850), (925, 23782), (1034, 21275), (1081, 20350), (1150, 19129), (1175, 18722), (1265, 17390), (1702, 12925), (1739, 12650), (1850, 11891), (2035, 10810), (2162, 10175), (2350, 9361), (2530, 8695), (2585, 8510), (3478, 6325), (4070, 5405), (4255, 5170)]