18683860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71861}}^1$

素因数の和:71883

約数の個数: 24

約数和(自身を含む): 42254856

約数和(自身を除く): 23570996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71861, 143722, 287444, 359305, 718610, 934193, 1437220, 1868386, 3736772, 4670965, 9341930, 18683860]

約数ペア:

[(1, 18683860), (2, 9341930), (4, 4670965), (5, 3736772), (10, 1868386), (13, 1437220), (20, 934193), (26, 718610), (52, 359305), (65, 287444), (130, 143722), (260, 71861)]