21293940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5297}}^1$

素因数の和:5376

約数の個数: 48

約数和(自身を含む): 60524352

約数和(自身を除く): 39230412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 134, 201, 268, 335, 402, 670, 804, 1005, 1340, 2010, 4020, 5297, 10594, 15891, 21188, 26485, 31782, 52970, 63564, 79455, 105940, 158910, 317820, 354899, 709798, 1064697, 1419596, 1774495, 2129394, 3548990, 4258788, 5323485, 7097980, 10646970, 21293940]

約数ペア:

[(1, 21293940), (2, 10646970), (3, 7097980), (4, 5323485), (5, 4258788), (6, 3548990), (10, 2129394), (12, 1774495), (15, 1419596), (20, 1064697), (30, 709798), (60, 354899), (67, 317820), (134, 158910), (201, 105940), (268, 79455), (335, 63564), (402, 52970), (670, 31782), (804, 26485), (1005, 21188), (1340, 15891), (2010, 10594), (4020, 5297)]