21572925

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 39521280

約数和(自身を除く): 17948355

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 79, 165, 237, 275, 331, 395, 825, 869, 993, 1185, 1655, 1975, 2607, 3641, 4345, 4965, 5925, 8275, 10923, 13035, 18205, 21725, 24825, 26149, 54615, 65175, 78447, 91025, 130745, 273075, 287639, 392235, 653725, 862917, 1438195, 1961175, 4314585, 7190975, 21572925]

約数ペア:

[(1, 21572925), (3, 7190975), (5, 4314585), (11, 1961175), (15, 1438195), (25, 862917), (33, 653725), (55, 392235), (75, 287639), (79, 273075), (165, 130745), (237, 91025), (275, 78447), (331, 65175), (395, 54615), (825, 26149), (869, 24825), (993, 21725), (1185, 18205), (1655, 13035), (1975, 10923), (2607, 8275), (3641, 5925), (4345, 4965)]