21893631

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10039809

約数列:

[1, 3, 23, 41, 69, 71, 109, 123, 213, 327, 943, 1633, 2507, 2829, 2911, 4469, 4899, 7521, 7739, 8733, 13407, 23217, 66953, 102787, 177997, 200859, 308361, 317299, 533991, 951897, 7297877, 21893631]

約数ペア:

[(1, 21893631), (3, 7297877), (23, 951897), (41, 533991), (69, 317299), (71, 308361), (109, 200859), (123, 177997), (213, 102787), (327, 66953), (943, 23217), (1633, 13407), (2507, 8733), (2829, 7739), (2911, 7521), (4469, 4899)]