20409591

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12347}}^1$

素因数の和:12398

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 9225609

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 12347, 37041, 234593, 358063, 703779, 1074189, 6803197, 20409591]

約数ペア:

[(1, 20409591), (3, 6803197), (19, 1074189), (29, 703779), (57, 358063), (87, 234593), (551, 37041), (1653, 12347)]