644757951

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{857}}^1$

素因数の和:1143

約数の個数: 32

約数和(自身を含む): 924168960

約数和(自身を除く): 279411009

約数列:

[1, 3, 19, 57, 67, 197, 201, 591, 857, 1273, 2571, 3743, 3819, 11229, 13199, 16283, 39597, 48849, 57419, 168829, 172257, 250781, 506487, 752343, 1090961, 3207751, 3272883, 9623253, 11311543, 33934629, 214919317, 644757951]

約数ペア:

[(1, 644757951), (3, 214919317), (19, 33934629), (57, 11311543), (67, 9623253), (197, 3272883), (201, 3207751), (591, 1090961), (857, 752343), (1273, 506487), (2571, 250781), (3743, 172257), (3819, 168829), (11229, 57419), (13199, 48849), (16283, 39597)]