21752730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{919}}^1$

素因数の和:1195

約数の個数: 48

約数和(自身を含む): 56833920

約数和(自身を除く): 35081190

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 263, 526, 789, 919, 1315, 1578, 1838, 2367, 2630, 2757, 3945, 4595, 4734, 5514, 7890, 8271, 9190, 11835, 13785, 16542, 23670, 27570, 41355, 82710, 241697, 483394, 725091, 1208485, 1450182, 2175273, 2416970, 3625455, 4350546, 7250910, 10876365, 21752730]

約数ペア:

[(1, 21752730), (2, 10876365), (3, 7250910), (5, 4350546), (6, 3625455), (9, 2416970), (10, 2175273), (15, 1450182), (18, 1208485), (30, 725091), (45, 483394), (90, 241697), (263, 82710), (526, 41355), (789, 27570), (919, 23670), (1315, 16542), (1578, 13785), (1838, 11835), (2367, 9190), (2630, 8271), (2757, 7890), (3945, 5514), (4595, 4734)]