31378923

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 51644736

約数和(自身を除く): 20265813

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 111, 153, 207, 241, 333, 391, 629, 723, 851, 1173, 1887, 2169, 2553, 3519, 4097, 5543, 5661, 7659, 8917, 12291, 14467, 16629, 26751, 36873, 43401, 49887, 80253, 94231, 130203, 151589, 205091, 282693, 454767, 615273, 848079, 1364301, 1845819, 3486547, 10459641, 31378923]

約数ペア:

[(1, 31378923), (3, 10459641), (9, 3486547), (17, 1845819), (23, 1364301), (37, 848079), (51, 615273), (69, 454767), (111, 282693), (153, 205091), (207, 151589), (241, 130203), (333, 94231), (391, 80253), (629, 49887), (723, 43401), (851, 36873), (1173, 26751), (1887, 16629), (2169, 14467), (2553, 12291), (3519, 8917), (4097, 7659), (5543, 5661)]