21116270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 46227456

約数和(自身を除く): 25111186

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 37, 62, 70, 74, 155, 185, 217, 259, 263, 310, 370, 434, 518, 526, 1085, 1147, 1295, 1315, 1841, 2170, 2294, 2590, 2630, 3682, 5735, 8029, 8153, 9205, 9731, 11470, 16058, 16306, 18410, 19462, 40145, 40765, 48655, 57071, 68117, 80290, 81530, 97310, 114142, 136234, 285355, 301661, 340585, 570710, 603322, 681170, 1508305, 2111627, 3016610, 4223254, 10558135, 21116270]

約数ペア:

[(1, 21116270), (2, 10558135), (5, 4223254), (7, 3016610), (10, 2111627), (14, 1508305), (31, 681170), (35, 603322), (37, 570710), (62, 340585), (70, 301661), (74, 285355), (155, 136234), (185, 114142), (217, 97310), (259, 81530), (263, 80290), (310, 68117), (370, 57071), (434, 48655), (518, 40765), (526, 40145), (1085, 19462), (1147, 18410), (1295, 16306), (1315, 16058), (1841, 11470), (2170, 9731), (2294, 9205), (2590, 8153), (2630, 8029), (3682, 5735)]