66877209

素因数分解:

$3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1091}}^1$

素因数の和:1250

約数の個数: 36

約数和(自身を含む): 113284080

約数和(自身を除く): 46406871

約数列:

[1, 3, 7, 9, 21, 49, 63, 139, 147, 417, 441, 973, 1091, 1251, 2919, 3273, 6811, 7637, 8757, 9819, 20433, 22911, 53459, 61299, 68733, 151649, 160377, 454947, 481131, 1061543, 1364841, 3184629, 7430801, 9553887, 22292403, 66877209]

約数ペア:

[(1, 66877209), (3, 22292403), (7, 9553887), (9, 7430801), (21, 3184629), (49, 1364841), (63, 1061543), (139, 481131), (147, 454947), (417, 160377), (441, 151649), (973, 68733), (1091, 61299), (1251, 53459), (2919, 22911), (3273, 20433), (6811, 9819), (7637, 8757)]