21380856

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{18181}}^1$

素因数の和:18204

約数の個数: 48

約数和(自身を含む): 62182440

約数和(自身を除く): 40801584

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 392, 588, 1176, 18181, 36362, 54543, 72724, 109086, 127267, 145448, 218172, 254534, 381801, 436344, 509068, 763602, 890869, 1018136, 1527204, 1781738, 2672607, 3054408, 3563476, 5345214, 7126952, 10690428, 21380856]

約数ペア:

[(1, 21380856), (2, 10690428), (3, 7126952), (4, 5345214), (6, 3563476), (7, 3054408), (8, 2672607), (12, 1781738), (14, 1527204), (21, 1018136), (24, 890869), (28, 763602), (42, 509068), (49, 436344), (56, 381801), (84, 254534), (98, 218172), (147, 145448), (168, 127267), (196, 109086), (294, 72724), (392, 54543), (588, 36362), (1176, 18181)]