21437966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51287}}^1$

素因数の和:51319

約数の個数: 16

約数和(自身を含む): 36927360

約数和(自身を除く): 15489394

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 51287, 102574, 564157, 974453, 1128314, 1948906, 10718983, 21437966]

約数ペア:

[(1, 21437966), (2, 10718983), (11, 1948906), (19, 1128314), (22, 974453), (38, 564157), (209, 102574), (418, 51287)]