20913618

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4463}}^1$

素因数の和:4550

約数の個数: 32

約数和(自身を含む): 46282752

約数和(自身を除く): 25369134

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 142, 213, 426, 781, 1562, 2343, 4463, 4686, 8926, 13389, 26778, 49093, 98186, 147279, 294558, 316873, 633746, 950619, 1901238, 3485603, 6971206, 10456809, 20913618]

約数ペア:

[(1, 20913618), (2, 10456809), (3, 6971206), (6, 3485603), (11, 1901238), (22, 950619), (33, 633746), (66, 316873), (71, 294558), (142, 147279), (213, 98186), (426, 49093), (781, 26778), (1562, 13389), (2343, 8926), (4463, 4686)]