21508715907

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{673}}^1\times {\mathrm{12373}}^1$

素因数の和:13100

約数の個数: 48

約数和(自身を含む): 36429451968

約数和(自身を除く): 14920736061

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 673, 861, 2019, 2583, 4711, 6057, 12373, 14133, 27593, 37119, 42399, 82779, 86611, 111357, 193151, 248337, 259833, 507293, 579453, 779499, 1521879, 1738359, 3551051, 4565637, 8327029, 10653153, 24981087, 31959459, 58289203, 74943261, 174867609, 341408189, 524602827, 1024224567, 2389857323, 3072673701, 7169571969, 21508715907]

約数ペア:

[(1, 21508715907), (3, 7169571969), (7, 3072673701), (9, 2389857323), (21, 1024224567), (41, 524602827), (63, 341408189), (123, 174867609), (287, 74943261), (369, 58289203), (673, 31959459), (861, 24981087), (2019, 10653153), (2583, 8327029), (4711, 4565637), (6057, 3551051), (12373, 1738359), (14133, 1521879), (27593, 779499), (37119, 579453), (42399, 507293), (82779, 259833), (86611, 248337), (111357, 193151)]