208319209

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{16823}}^1$

素因数の和:16920

約数の個数: 16

約数和(自身を含む): 250341120

約数和(自身を除く): 42021911

約数列:

[1, 7, 29, 61, 203, 427, 1769, 12383, 16823, 117761, 487867, 1026203, 3415069, 7183421, 29759887, 208319209]

約数ペア:

[(1, 208319209), (7, 29759887), (29, 7183421), (61, 3415069), (203, 1026203), (427, 487867), (1769, 117761), (12383, 16823)]