31421236

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{353}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 73031616

約数和(自身を除く): 41610380

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 154, 187, 238, 289, 308, 353, 374, 476, 578, 706, 748, 1156, 1309, 1412, 2023, 2471, 2618, 3179, 3883, 4046, 4942, 5236, 6001, 6358, 7766, 8092, 9884, 12002, 12716, 15532, 22253, 24004, 27181, 42007, 44506, 54362, 66011, 84014, 89012, 102017, 108724, 132022, 168028, 204034, 264044, 408068, 462077, 714119, 924154, 1122187, 1428238, 1848308, 2244374, 2856476, 4488748, 7855309, 15710618, 31421236]

約数ペア:

[(1, 31421236), (2, 15710618), (4, 7855309), (7, 4488748), (11, 2856476), (14, 2244374), (17, 1848308), (22, 1428238), (28, 1122187), (34, 924154), (44, 714119), (68, 462077), (77, 408068), (119, 264044), (154, 204034), (187, 168028), (238, 132022), (289, 108724), (308, 102017), (353, 89012), (374, 84014), (476, 66011), (578, 54362), (706, 44506), (748, 42007), (1156, 27181), (1309, 24004), (1412, 22253), (2023, 15532), (2471, 12716), (2618, 12002), (3179, 9884), (3883, 8092), (4046, 7766), (4942, 6358), (5236, 6001)]