20361705

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2131}}^1$

素因数の和:2166

約数の個数: 48

約数和(自身を含む): 40832064

約数和(自身を除く): 20470359

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2131, 3185, 6393, 9555, 10655, 14917, 27703, 31965, 44751, 74585, 83109, 104419, 138515, 193921, 223755, 313257, 415545, 522095, 581763, 969605, 1357447, 1566285, 2908815, 4072341, 6787235, 20361705]

約数ペア:

[(1, 20361705), (3, 6787235), (5, 4072341), (7, 2908815), (13, 1566285), (15, 1357447), (21, 969605), (35, 581763), (39, 522095), (49, 415545), (65, 313257), (91, 223755), (105, 193921), (147, 138515), (195, 104419), (245, 83109), (273, 74585), (455, 44751), (637, 31965), (735, 27703), (1365, 14917), (1911, 10655), (2131, 9555), (3185, 6393)]