21869384

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{541}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 42666240

約数和(自身を除く): 20796856

約数列:

[1, 2, 4, 8, 31, 62, 124, 163, 248, 326, 541, 652, 1082, 1304, 2164, 4328, 5053, 10106, 16771, 20212, 33542, 40424, 67084, 88183, 134168, 176366, 352732, 705464, 2733673, 5467346, 10934692, 21869384]

約数ペア:

[(1, 21869384), (2, 10934692), (4, 5467346), (8, 2733673), (31, 705464), (62, 352732), (124, 176366), (163, 134168), (248, 88183), (326, 67084), (541, 40424), (652, 33542), (1082, 20212), (1304, 16771), (2164, 10106), (4328, 5053)]