21567285

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4397}}^1$

素因数の和:4517

約数の個数: 24

約数和(自身を含む): 37734840

約数和(自身を除く): 16167555

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4397, 4905, 13191, 21985, 39573, 65955, 197865, 479273, 1437819, 2396365, 4313457, 7189095, 21567285]

約数ペア:

[(1, 21567285), (3, 7189095), (5, 4313457), (9, 2396365), (15, 1437819), (45, 479273), (109, 197865), (327, 65955), (545, 39573), (981, 21985), (1635, 13191), (4397, 4905)]