21766941

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^2$

素因数の和:163

約数の個数: 48

約数和(自身を含む): 38478720

約数和(自身を除く): 16711779

約数列:

[1, 3, 7, 9, 21, 27, 41, 53, 63, 123, 159, 189, 287, 369, 371, 477, 861, 1107, 1113, 1431, 2173, 2583, 2809, 3339, 6519, 7749, 8427, 10017, 15211, 19557, 19663, 25281, 45633, 58671, 58989, 75843, 115169, 136899, 176967, 345507, 410697, 530901, 806183, 1036521, 2418549, 3109563, 7255647, 21766941]

約数ペア:

[(1, 21766941), (3, 7255647), (7, 3109563), (9, 2418549), (21, 1036521), (27, 806183), (41, 530901), (53, 410697), (63, 345507), (123, 176967), (159, 136899), (189, 115169), (287, 75843), (369, 58989), (371, 58671), (477, 45633), (861, 25281), (1107, 19663), (1113, 19557), (1431, 15211), (2173, 10017), (2583, 8427), (2809, 7749), (3339, 6519)]