19721053

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{383}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 22413312

約数和(自身を除く): 2692259

約数列:

[1, 11, 31, 151, 341, 383, 1661, 4213, 4681, 11873, 51491, 57833, 130603, 636163, 1792823, 19721053]

約数ペア:

[(1, 19721053), (11, 1792823), (31, 636163), (151, 130603), (341, 57833), (383, 51491), (1661, 11873), (4213, 4681)]