20121947768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193480267}}^1$

素因数の和:193480286

約数の個数: 16

約数和(自身を含む): 40630856280

約数和(自身を除く): 20508908512

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193480267, 386960534, 773921068, 1547842136, 2515243471, 5030486942, 10060973884, 20121947768]

約数ペア:

[(1, 20121947768), (2, 10060973884), (4, 5030486942), (8, 2515243471), (13, 1547842136), (26, 773921068), (52, 386960534), (104, 193480267)]