21680718

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2843}}^1$

素因数の和:2920

約数の個数: 32

約数和(自身を含む): 45868032

約数和(自身を除く): 24187314

約数列:

[1, 2, 3, 6, 31, 41, 62, 82, 93, 123, 186, 246, 1271, 2542, 2843, 3813, 5686, 7626, 8529, 17058, 88133, 116563, 176266, 233126, 264399, 349689, 528798, 699378, 3613453, 7226906, 10840359, 21680718]

約数ペア:

[(1, 21680718), (2, 10840359), (3, 7226906), (6, 3613453), (31, 699378), (41, 528798), (62, 349689), (82, 264399), (93, 233126), (123, 176266), (186, 116563), (246, 88133), (1271, 17058), (2542, 8529), (2843, 7626), (3813, 5686)]