20540494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{1609}}^1$

素因数の和:2115

約数の個数: 16

約数和(自身を含む): 33269040

約数和(自身を除く): 12728546

約数列:

[1, 2, 13, 26, 491, 982, 1609, 3218, 6383, 12766, 20917, 41834, 790019, 1580038, 10270247, 20540494]

約数ペア:

[(1, 20540494), (2, 10270247), (13, 1580038), (26, 790019), (491, 41834), (982, 20917), (1609, 12766), (3218, 6383)]