21169377

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 32457600

約数和(自身を除く): 11288223

約数列:

[1, 3, 9, 27, 59, 97, 137, 177, 291, 411, 531, 873, 1233, 1593, 2619, 3699, 5723, 8083, 13289, 17169, 24249, 39867, 51507, 72747, 119601, 154521, 218241, 358803, 784051, 2352153, 7056459, 21169377]

約数ペア:

[(1, 21169377), (3, 7056459), (9, 2352153), (27, 784051), (59, 358803), (97, 218241), (137, 154521), (177, 119601), (291, 72747), (411, 51507), (531, 39867), (873, 24249), (1233, 17169), (1593, 13289), (2619, 8083), (3699, 5723)]