21400354

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{1907}}^1$

素因数の和:2121

約数の個数: 16

約数和(自身を含む): 33336576

約数和(自身を除く): 11936222

約数列:

[1, 2, 31, 62, 181, 362, 1907, 3814, 5611, 11222, 59117, 118234, 345167, 690334, 10700177, 21400354]

約数ペア:

[(1, 21400354), (2, 10700177), (31, 690334), (62, 345167), (181, 118234), (362, 59117), (1907, 11222), (3814, 5611)]