19798792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1499}}^1$

素因数の和:1645

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 20521208

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1499, 1651, 2998, 3302, 5996, 6604, 11992, 13208, 19487, 38974, 77948, 155896, 190373, 380746, 761492, 1522984, 2474849, 4949698, 9899396, 19798792]

約数ペア:

[(1, 19798792), (2, 9899396), (4, 4949698), (8, 2474849), (13, 1522984), (26, 761492), (52, 380746), (104, 190373), (127, 155896), (254, 77948), (508, 38974), (1016, 19487), (1499, 13208), (1651, 11992), (2998, 6604), (3302, 5996)]