1813221

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 2772224

約数和(自身を除く): 959003

約数列:

[1, 3, 9, 31, 67, 93, 97, 201, 279, 291, 603, 873, 2077, 3007, 6231, 6499, 9021, 18693, 19497, 27063, 58491, 201469, 604407, 1813221]

約数ペア:

[(1, 1813221), (3, 604407), (9, 201469), (31, 58491), (67, 27063), (93, 19497), (97, 18693), (201, 9021), (279, 6499), (291, 6231), (603, 3007), (873, 2077)]