718641

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 1392768

約数和(自身を除く): 674127

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 61, 63, 77, 99, 119, 153, 183, 187, 231, 357, 427, 549, 561, 671, 693, 1037, 1071, 1281, 1309, 1683, 2013, 3111, 3843, 3927, 4697, 6039, 7259, 9333, 11407, 11781, 14091, 21777, 34221, 42273, 65331, 79849, 102663, 239547, 718641]

約数ペア:

[(1, 718641), (3, 239547), (7, 102663), (9, 79849), (11, 65331), (17, 42273), (21, 34221), (33, 21777), (51, 14091), (61, 11781), (63, 11407), (77, 9333), (99, 7259), (119, 6039), (153, 4697), (183, 3927), (187, 3843), (231, 3111), (357, 2013), (427, 1683), (549, 1309), (561, 1281), (671, 1071), (693, 1037)]