20647406

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 34728960

約数和(自身を除く): 14081554

約数列:

[1, 2, 13, 26, 37, 74, 127, 169, 254, 338, 481, 962, 1651, 2197, 3302, 4394, 4699, 6253, 9398, 12506, 21463, 42926, 61087, 81289, 122174, 162578, 279019, 558038, 794131, 1588262, 10323703, 20647406]

約数ペア:

[(1, 20647406), (2, 10323703), (13, 1588262), (26, 794131), (37, 558038), (74, 279019), (127, 162578), (169, 122174), (254, 81289), (338, 61087), (481, 42926), (962, 21463), (1651, 12506), (2197, 9398), (3302, 6253), (4394, 4699)]