21228856

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{761}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 43616880

約数和(自身を除く): 22388024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 317, 634, 761, 1268, 1522, 2536, 3044, 3487, 6088, 6974, 8371, 13948, 16742, 27896, 33484, 66968, 241237, 482474, 964948, 1929896, 2653607, 5307214, 10614428, 21228856]

約数ペア:

[(1, 21228856), (2, 10614428), (4, 5307214), (8, 2653607), (11, 1929896), (22, 964948), (44, 482474), (88, 241237), (317, 66968), (634, 33484), (761, 27896), (1268, 16742), (1522, 13948), (2536, 8371), (3044, 6974), (3487, 6088)]