21578218

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{3331}}^1$

素因数の和:3453

約数の個数: 16

約数和(自身を含む): 33586560

約数和(自身を除く): 12008342

約数列:

[1, 2, 41, 79, 82, 158, 3239, 3331, 6478, 6662, 136571, 263149, 273142, 526298, 10789109, 21578218]

約数ペア:

[(1, 21578218), (2, 10789109), (41, 526298), (79, 273142), (82, 263149), (158, 136571), (3239, 6662), (3331, 6478)]