21047580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38977}}^1$

素因数の和:38995

約数の個数: 48

約数和(自身を含む): 65483040

約数和(自身を除く): 44435460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38977, 77954, 116931, 155908, 194885, 233862, 350793, 389770, 467724, 584655, 701586, 779540, 1052379, 1169310, 1403172, 1753965, 2104758, 2338620, 3507930, 4209516, 5261895, 7015860, 10523790, 21047580]

約数ペア:

[(1, 21047580), (2, 10523790), (3, 7015860), (4, 5261895), (5, 4209516), (6, 3507930), (9, 2338620), (10, 2104758), (12, 1753965), (15, 1403172), (18, 1169310), (20, 1052379), (27, 779540), (30, 701586), (36, 584655), (45, 467724), (54, 389770), (60, 350793), (90, 233862), (108, 194885), (135, 155908), (180, 116931), (270, 77954), (540, 38977)]