21607570

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{691}}^1$

素因数の和:810

約数の個数: 32

約数和(自身を含む): 40357440

約数和(自身を除く): 18749870

約数列:

[1, 2, 5, 10, 53, 59, 106, 118, 265, 295, 530, 590, 691, 1382, 3127, 3455, 6254, 6910, 15635, 31270, 36623, 40769, 73246, 81538, 183115, 203845, 366230, 407690, 2160757, 4321514, 10803785, 21607570]

約数ペア:

[(1, 21607570), (2, 10803785), (5, 4321514), (10, 2160757), (53, 407690), (59, 366230), (106, 203845), (118, 183115), (265, 81538), (295, 73246), (530, 40769), (590, 36623), (691, 31270), (1382, 15635), (3127, 6910), (3455, 6254)]