21895858

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 24

約数和(自身を含む): 34891776

約数和(自身を除く): 12995918

約数列:

[1, 2, 31, 43, 62, 86, 191, 382, 1333, 1849, 2666, 3698, 5921, 8213, 11842, 16426, 57319, 114638, 254603, 353159, 509206, 706318, 10947929, 21895858]

約数ペア:

[(1, 21895858), (2, 10947929), (31, 706318), (43, 509206), (62, 353159), (86, 254603), (191, 114638), (382, 57319), (1333, 16426), (1849, 11842), (2666, 8213), (3698, 5921)]