21674165

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 7114315

約数列:

[1, 5, 23, 29, 67, 97, 115, 145, 335, 485, 667, 1541, 1943, 2231, 2813, 3335, 6499, 7705, 9715, 11155, 14065, 32495, 44689, 64699, 149477, 188471, 223445, 323495, 747385, 942355, 4334833, 21674165]

約数ペア:

[(1, 21674165), (5, 4334833), (23, 942355), (29, 747385), (67, 323495), (97, 223445), (115, 188471), (145, 149477), (335, 64699), (485, 44689), (667, 32495), (1541, 14065), (1943, 11155), (2231, 9715), (2813, 7705), (3335, 6499)]