21398889616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2780521}}^1$

素因数の和:2780579

約数の個数: 40

約数和(自身を含む): 45856368824

約数和(自身を除く): 24457479208

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 3848, 7696, 2780521, 5561042, 11122084, 22244168, 36146773, 44488336, 72293546, 102879277, 144587092, 205758554, 289174184, 411517108, 578348368, 823034216, 1337430601, 1646068432, 2674861202, 5349722404, 10699444808, 21398889616]

約数ペア:

[(1, 21398889616), (2, 10699444808), (4, 5349722404), (8, 2674861202), (13, 1646068432), (16, 1337430601), (26, 823034216), (37, 578348368), (52, 411517108), (74, 289174184), (104, 205758554), (148, 144587092), (208, 102879277), (296, 72293546), (481, 44488336), (592, 36146773), (962, 22244168), (1924, 11122084), (3848, 5561042), (7696, 2780521)]