31681923

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 53406720

約数和(自身を除く): 21724797

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 113, 169, 237, 273, 339, 507, 553, 791, 1027, 1183, 1469, 1659, 2373, 3081, 3549, 4407, 7189, 8927, 10283, 13351, 19097, 21567, 26781, 30849, 40053, 57291, 62489, 93457, 116051, 133679, 187467, 280371, 348153, 401037, 812357, 1508663, 2437071, 4525989, 10560641, 31681923]

約数ペア:

[(1, 31681923), (3, 10560641), (7, 4525989), (13, 2437071), (21, 1508663), (39, 812357), (79, 401037), (91, 348153), (113, 280371), (169, 187467), (237, 133679), (273, 116051), (339, 93457), (507, 62489), (553, 57291), (791, 40053), (1027, 30849), (1183, 26781), (1469, 21567), (1659, 19097), (2373, 13351), (3081, 10283), (3549, 8927), (4407, 7189)]