21850164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2797}}^1$

素因数の和:2845

約数の個数: 72

約数和(自身を含む): 65182208

約数和(自身を除く): 43332044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 62, 63, 84, 93, 124, 126, 186, 217, 252, 279, 372, 434, 558, 651, 868, 1116, 1302, 1953, 2604, 2797, 3906, 5594, 7812, 8391, 11188, 16782, 19579, 25173, 33564, 39158, 50346, 58737, 78316, 86707, 100692, 117474, 173414, 176211, 234948, 260121, 346828, 352422, 520242, 606949, 704844, 780363, 1040484, 1213898, 1560726, 1820847, 2427796, 3121452, 3641694, 5462541, 7283388, 10925082, 21850164]

約数ペア:

[(1, 21850164), (2, 10925082), (3, 7283388), (4, 5462541), (6, 3641694), (7, 3121452), (9, 2427796), (12, 1820847), (14, 1560726), (18, 1213898), (21, 1040484), (28, 780363), (31, 704844), (36, 606949), (42, 520242), (62, 352422), (63, 346828), (84, 260121), (93, 234948), (124, 176211), (126, 173414), (186, 117474), (217, 100692), (252, 86707), (279, 78316), (372, 58737), (434, 50346), (558, 39158), (651, 33564), (868, 25173), (1116, 19579), (1302, 16782), (1953, 11188), (2604, 8391), (2797, 7812), (3906, 5594)]