28703367

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 54027792

約数和(自身を除く): 25324425

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 61, 63, 77, 97, 99, 147, 183, 231, 291, 427, 441, 539, 549, 671, 679, 693, 873, 1067, 1281, 1617, 2013, 2037, 2989, 3201, 3843, 4697, 4753, 4851, 5917, 6039, 6111, 7469, 8967, 9603, 14091, 14259, 17751, 22407, 26901, 32879, 41419, 42273, 42777, 52283, 53253, 65087, 67221, 98637, 124257, 156849, 195261, 289933, 295911, 372771, 455609, 470547, 585783, 869799, 1366827, 2609397, 3189263, 4100481, 9567789, 28703367]

約数ペア:

[(1, 28703367), (3, 9567789), (7, 4100481), (9, 3189263), (11, 2609397), (21, 1366827), (33, 869799), (49, 585783), (61, 470547), (63, 455609), (77, 372771), (97, 295911), (99, 289933), (147, 195261), (183, 156849), (231, 124257), (291, 98637), (427, 67221), (441, 65087), (539, 53253), (549, 52283), (671, 42777), (679, 42273), (693, 41419), (873, 32879), (1067, 26901), (1281, 22407), (1617, 17751), (2013, 14259), (2037, 14091), (2989, 9603), (3201, 8967), (3843, 7469), (4697, 6111), (4753, 6039), (4851, 5917)]