20403955257

素因数分解:

$3^1\times 7^1\times {\mathrm{43627}}^1\times {\mathrm{22271}}^1$

素因数の和:65908

約数の個数: 16

約数和(自身を含む): 31093850112

約数和(自身を除く): 10689894855

約数列:

[1, 3, 7, 21, 22271, 43627, 66813, 130881, 155897, 305389, 467691, 916167, 971616917, 2914850751, 6801318419, 20403955257]

約数ペア:

[(1, 20403955257), (3, 6801318419), (7, 2914850751), (21, 971616917), (22271, 916167), (43627, 467691), (66813, 305389), (130881, 155897)]