21901230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18719}}^1$

素因数の和:18745

約数の個数: 48

約数和(自身を含む): 61326720

約数和(自身を除く): 39425490

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 18719, 37438, 56157, 93595, 112314, 168471, 187190, 243347, 280785, 336942, 486694, 561570, 730041, 842355, 1216735, 1460082, 1684710, 2190123, 2433470, 3650205, 4380246, 7300410, 10950615, 21901230]

約数ペア:

[(1, 21901230), (2, 10950615), (3, 7300410), (5, 4380246), (6, 3650205), (9, 2433470), (10, 2190123), (13, 1684710), (15, 1460082), (18, 1216735), (26, 842355), (30, 730041), (39, 561570), (45, 486694), (65, 336942), (78, 280785), (90, 243347), (117, 187190), (130, 168471), (195, 112314), (234, 93595), (390, 56157), (585, 37438), (1170, 18719)]