20815644885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{20051}}^1\times {\mathrm{9887}}^1$

素因数の和:29953

約数の個数: 32

約数和(自身を含む): 38068641792

約数和(自身を除く): 17252996907

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 9887, 20051, 29661, 49435, 60153, 69209, 100255, 140357, 148305, 207627, 300765, 346045, 421071, 701785, 1038135, 2105355, 198244237, 594732711, 991221185, 1387709659, 2973663555, 4163128977, 6938548295, 20815644885]

約数ペア:

[(1, 20815644885), (3, 6938548295), (5, 4163128977), (7, 2973663555), (15, 1387709659), (21, 991221185), (35, 594732711), (105, 198244237), (9887, 2105355), (20051, 1038135), (29661, 701785), (49435, 421071), (60153, 346045), (69209, 300765), (100255, 207627), (140357, 148305)]