21461115

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 37267776

約数和(自身を除く): 15806661

約数列:

[1, 3, 5, 13, 15, 39, 65, 157, 195, 471, 701, 785, 2041, 2103, 2355, 3505, 6123, 9113, 10205, 10515, 27339, 30615, 45565, 110057, 136695, 330171, 550285, 1430741, 1650855, 4292223, 7153705, 21461115]

約数ペア:

[(1, 21461115), (3, 7153705), (5, 4292223), (13, 1650855), (15, 1430741), (39, 550285), (65, 330171), (157, 136695), (195, 110057), (471, 45565), (701, 30615), (785, 27339), (2041, 10515), (2103, 10205), (2355, 9113), (3505, 6123)]