21688838

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{9521}}^1$

素因数の和:9607

約数の個数: 16

約数和(自身を含む): 34964784

約数和(自身を除く): 13275946

約数列:

[1, 2, 17, 34, 67, 134, 1139, 2278, 9521, 19042, 161857, 323714, 637907, 1275814, 10844419, 21688838]

約数ペア:

[(1, 21688838), (2, 10844419), (17, 1275814), (34, 637907), (67, 323714), (134, 161857), (1139, 19042), (2278, 9521)]