20967904

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 23545376

約数列:

[1, 2, 4, 8, 16, 23, 31, 32, 46, 62, 92, 124, 184, 248, 368, 496, 713, 736, 919, 992, 1426, 1838, 2852, 3676, 5704, 7352, 11408, 14704, 21137, 22816, 28489, 29408, 42274, 56978, 84548, 113956, 169096, 227912, 338192, 455824, 655247, 676384, 911648, 1310494, 2620988, 5241976, 10483952, 20967904]

約数ペア:

[(1, 20967904), (2, 10483952), (4, 5241976), (8, 2620988), (16, 1310494), (23, 911648), (31, 676384), (32, 655247), (46, 455824), (62, 338192), (92, 227912), (124, 169096), (184, 113956), (248, 84548), (368, 56978), (496, 42274), (713, 29408), (736, 28489), (919, 22816), (992, 21137), (1426, 14704), (1838, 11408), (2852, 7352), (3676, 5704)]