21096523

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{509}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 25067520

約数和(自身を除く): 3970997

約数列:

[1, 7, 31, 191, 217, 509, 1337, 3563, 5921, 15779, 41447, 97219, 110453, 680533, 3013789, 21096523]

約数ペア:

[(1, 21096523), (7, 3013789), (31, 680533), (191, 110453), (217, 97219), (509, 41447), (1337, 15779), (3563, 5921)]