21237240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{176977}}^1$

素因数の和:176991

約数の個数: 32

約数和(自身を含む): 63712080

約数和(自身を除く): 42474840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 176977, 353954, 530931, 707908, 884885, 1061862, 1415816, 1769770, 2123724, 2654655, 3539540, 4247448, 5309310, 7079080, 10618620, 21237240]

約数ペア:

[(1, 21237240), (2, 10618620), (3, 7079080), (4, 5309310), (5, 4247448), (6, 3539540), (8, 2654655), (10, 2123724), (12, 1769770), (15, 1415816), (20, 1061862), (24, 884885), (30, 707908), (40, 530931), (60, 353954), (120, 176977)]