20545973

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{641}}^1$

素因数の和:908

約数の個数: 16

約数和(自身を含む): 24858240

約数和(自身を除く): 4312267

約数列:

[1, 7, 19, 133, 241, 641, 1687, 4487, 4579, 12179, 32053, 85253, 154481, 1081367, 2935139, 20545973]

約数ペア:

[(1, 20545973), (7, 2935139), (19, 1081367), (133, 154481), (241, 85253), (641, 32053), (1687, 12179), (4487, 4579)]