81815349

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2663}}^1$

素因数の和:2710

約数の個数: 48

約数和(自身を含む): 145774080

約数和(自身を除く): 63958731

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 931, 1463, 1617, 2663, 2793, 4389, 7989, 10241, 18641, 29293, 30723, 50597, 55923, 87879, 130487, 151791, 205051, 354179, 391461, 556567, 615153, 1062537, 1435357, 1669701, 2479253, 3895969, 4306071, 7437759, 11687907, 27271783, 81815349]

約数ペア:

[(1, 81815349), (3, 27271783), (7, 11687907), (11, 7437759), (19, 4306071), (21, 3895969), (33, 2479253), (49, 1669701), (57, 1435357), (77, 1062537), (133, 615153), (147, 556567), (209, 391461), (231, 354179), (399, 205051), (539, 151791), (627, 130487), (931, 87879), (1463, 55923), (1617, 50597), (2663, 30723), (2793, 29293), (4389, 18641), (7989, 10241)]