21113325

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1059

約数の個数: 48

約数和(自身を含む): 40076800

約数和(自身を除く): 18963475

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 1009, 1395, 2325, 3027, 4185, 5045, 6975, 9081, 15135, 20925, 25225, 27243, 31279, 45405, 75675, 93837, 136215, 156395, 227025, 281511, 469185, 681075, 781975, 844533, 1407555, 2345925, 4222665, 7037775, 21113325]

約数ペア:

[(1, 21113325), (3, 7037775), (5, 4222665), (9, 2345925), (15, 1407555), (25, 844533), (27, 781975), (31, 681075), (45, 469185), (75, 281511), (93, 227025), (135, 156395), (155, 136215), (225, 93837), (279, 75675), (465, 45405), (675, 31279), (775, 27243), (837, 25225), (1009, 20925), (1395, 15135), (2325, 9081), (3027, 6975), (4185, 5045)]