20154435

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1613}}^1$

素因数の和:1652

約数の個数: 48

約数和(自身を含む): 39743136

約数和(自身を除く): 19588701

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 357, 595, 735, 833, 1613, 1785, 2499, 4165, 4839, 8065, 11291, 12495, 24195, 27421, 33873, 56455, 79037, 82263, 137105, 169365, 191947, 237111, 395185, 411315, 575841, 959735, 1185555, 1343629, 2879205, 4030887, 6718145, 20154435]

約数ペア:

[(1, 20154435), (3, 6718145), (5, 4030887), (7, 2879205), (15, 1343629), (17, 1185555), (21, 959735), (35, 575841), (49, 411315), (51, 395185), (85, 237111), (105, 191947), (119, 169365), (147, 137105), (245, 82263), (255, 79037), (357, 56455), (595, 33873), (735, 27421), (833, 24195), (1613, 12495), (1785, 11291), (2499, 8065), (4165, 4839)]