21522428

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 38707200

約数和(自身を除く): 17184772

約数列:

[1, 2, 4, 47, 94, 188, 239, 478, 479, 956, 958, 1916, 11233, 22466, 22513, 44932, 45026, 90052, 114481, 228962, 457924, 5380607, 10761214, 21522428]

約数ペア:

[(1, 21522428), (2, 10761214), (4, 5380607), (47, 457924), (94, 228962), (188, 114481), (239, 90052), (478, 45026), (479, 44932), (956, 22513), (958, 22466), (1916, 11233)]