18470907

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 16123653

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1187, 1197, 1729, 2223, 3561, 5187, 8309, 10683, 15431, 15561, 22553, 24927, 46293, 67659, 74781, 108017, 138879, 157871, 202977, 293189, 324051, 473613, 879567, 972153, 1420839, 2052323, 2638701, 6156969, 18470907]

約数ペア:

[(1, 18470907), (3, 6156969), (7, 2638701), (9, 2052323), (13, 1420839), (19, 972153), (21, 879567), (39, 473613), (57, 324051), (63, 293189), (91, 202977), (117, 157871), (133, 138879), (171, 108017), (247, 74781), (273, 67659), (399, 46293), (741, 24927), (819, 22553), (1187, 15561), (1197, 15431), (1729, 10683), (2223, 8309), (3561, 5187)]