20952590

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67589}}^1$

素因数の和:67627

約数の個数: 16

約数和(自身を含む): 38931840

約数和(自身を除く): 17979250

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67589, 135178, 337945, 675890, 2095259, 4190518, 10476295, 20952590]

約数ペア:

[(1, 20952590), (2, 10476295), (5, 4190518), (10, 2095259), (31, 675890), (62, 337945), (155, 135178), (310, 67589)]