18554895

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 34025472

約数和(自身を除く): 15470577

約数列:

[1, 3, 5, 9, 15, 31, 45, 47, 93, 141, 155, 235, 279, 283, 423, 465, 705, 849, 1395, 1415, 1457, 2115, 2547, 4245, 4371, 7285, 8773, 12735, 13113, 13301, 21855, 26319, 39903, 43865, 65565, 66505, 78957, 119709, 131595, 199515, 394785, 412331, 598545, 1236993, 2061655, 3710979, 6184965, 18554895]

約数ペア:

[(1, 18554895), (3, 6184965), (5, 3710979), (9, 2061655), (15, 1236993), (31, 598545), (45, 412331), (47, 394785), (93, 199515), (141, 131595), (155, 119709), (235, 78957), (279, 66505), (283, 65565), (423, 43865), (465, 39903), (705, 26319), (849, 21855), (1395, 13301), (1415, 13113), (1457, 12735), (2115, 8773), (2547, 7285), (4245, 4371)]