21376306

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1423}}^1$

素因数の和:1498

約数の個数: 32

約数和(自身を含む): 38960640

約数和(自身を除く): 17584334

約数列:

[1, 2, 7, 14, 29, 37, 58, 74, 203, 259, 406, 518, 1073, 1423, 2146, 2846, 7511, 9961, 15022, 19922, 41267, 52651, 82534, 105302, 288869, 368557, 577738, 737114, 1526879, 3053758, 10688153, 21376306]

約数ペア:

[(1, 21376306), (2, 10688153), (7, 3053758), (14, 1526879), (29, 737114), (37, 577738), (58, 368557), (74, 288869), (203, 105302), (259, 82534), (406, 52651), (518, 41267), (1073, 19922), (1423, 15022), (2146, 9961), (2846, 7511)]