21891074

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:745

約数の個数: 16

約数和(自身を含む): 33324480

約数和(自身を除く): 11433406

約数列:

[1, 2, 151, 173, 302, 346, 419, 838, 26123, 52246, 63269, 72487, 126538, 144974, 10945537, 21891074]

約数ペア:

[(1, 21891074), (2, 10945537), (151, 144974), (173, 126538), (302, 72487), (346, 63269), (419, 52246), (838, 26123)]