21618428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21881}}^1$

素因数の和:21917

約数の個数: 24

約数和(自身を含む): 42888720

約数和(自身を除く): 21270292

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21881, 43762, 87524, 284453, 415739, 568906, 831478, 1137812, 1662956, 5404607, 10809214, 21618428]

約数ペア:

[(1, 21618428), (2, 10809214), (4, 5404607), (13, 1662956), (19, 1137812), (26, 831478), (38, 568906), (52, 415739), (76, 284453), (247, 87524), (494, 43762), (988, 21881)]