21801473915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2560361}}^1$

素因数の和:2560510

約数の個数: 16

約数和(自身を含む): 28389293856

約数和(自身を除く): 6587819941

約数列:

[1, 5, 13, 65, 131, 655, 1703, 8515, 2560361, 12801805, 33284693, 166423465, 335407291, 1677036455, 4360294783, 21801473915]

約数ペア:

[(1, 21801473915), (5, 4360294783), (13, 1677036455), (65, 335407291), (131, 166423465), (655, 33284693), (1703, 12801805), (8515, 2560361)]