21616764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138569}}^1$

素因数の和:138589

約数の個数: 24

約数和(自身を含む): 54319440

約数和(自身を除く): 32702676

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138569, 277138, 415707, 554276, 831414, 1662828, 1801397, 3602794, 5404191, 7205588, 10808382, 21616764]

約数ペア:

[(1, 21616764), (2, 10808382), (3, 7205588), (4, 5404191), (6, 3602794), (12, 1801397), (13, 1662828), (26, 831414), (39, 554276), (52, 415707), (78, 277138), (156, 138569)]