21783980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{18461}}^1$

素因数の和:18529

約数の個数: 24

約数和(自身を含む): 46524240

約数和(自身を除く): 24740260

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 18461, 36922, 73844, 92305, 184610, 369220, 1089199, 2178398, 4356796, 5445995, 10891990, 21783980]

約数ペア:

[(1, 21783980), (2, 10891990), (4, 5445995), (5, 4356796), (10, 2178398), (20, 1089199), (59, 369220), (118, 184610), (236, 92305), (295, 73844), (590, 36922), (1180, 18461)]