21857712

素因数分解:

$2^4\times 3^1\times {\mathrm{659}}^1\times {\mathrm{691}}^1$

素因数の和:1361

約数の個数: 40

約数和(自身を含む): 56633280

約数和(自身を除く): 34775568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 659, 691, 1318, 1382, 1977, 2073, 2636, 2764, 3954, 4146, 5272, 5528, 7908, 8292, 10544, 11056, 15816, 16584, 31632, 33168, 455369, 910738, 1366107, 1821476, 2732214, 3642952, 5464428, 7285904, 10928856, 21857712]

約数ペア:

[(1, 21857712), (2, 10928856), (3, 7285904), (4, 5464428), (6, 3642952), (8, 2732214), (12, 1821476), (16, 1366107), (24, 910738), (48, 455369), (659, 33168), (691, 31632), (1318, 16584), (1382, 15816), (1977, 11056), (2073, 10544), (2636, 8292), (2764, 7908), (3954, 5528), (4146, 5272)]