21305730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4357}}^1$

素因数の和:4530

約数の個数: 32

約数和(自身を含む): 51459264

約数和(自身を除く): 30153534

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 815, 978, 1630, 2445, 4357, 4890, 8714, 13071, 21785, 26142, 43570, 65355, 130710, 710191, 1420382, 2130573, 3550955, 4261146, 7101910, 10652865, 21305730]

約数ペア:

[(1, 21305730), (2, 10652865), (3, 7101910), (5, 4261146), (6, 3550955), (10, 2130573), (15, 1420382), (30, 710191), (163, 130710), (326, 65355), (489, 43570), (815, 26142), (978, 21785), (1630, 13071), (2445, 8714), (4357, 4890)]