21421125

素因数分解:

$3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{577}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 43280640

約数和(自身を除く): 21859515

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 125, 135, 165, 225, 275, 297, 375, 495, 577, 675, 825, 1125, 1375, 1485, 1731, 2475, 2885, 3375, 4125, 5193, 6347, 7425, 8655, 12375, 14425, 15579, 19041, 25965, 31735, 37125, 43275, 57123, 72125, 77895, 95205, 129825, 158675, 171369, 216375, 285615, 389475, 476025, 649125, 793375, 856845, 1428075, 1947375, 2380125, 4284225, 7140375, 21421125]

約数ペア:

[(1, 21421125), (3, 7140375), (5, 4284225), (9, 2380125), (11, 1947375), (15, 1428075), (25, 856845), (27, 793375), (33, 649125), (45, 476025), (55, 389475), (75, 285615), (99, 216375), (125, 171369), (135, 158675), (165, 129825), (225, 95205), (275, 77895), (297, 72125), (375, 57123), (495, 43275), (577, 37125), (675, 31735), (825, 25965), (1125, 19041), (1375, 15579), (1485, 14425), (1731, 12375), (2475, 8655), (2885, 7425), (3375, 6347), (4125, 5193)]