21392590

素因数分解:

$2^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4253}}^1$

素因数の和:4763

約数の個数: 16

約数和(自身を含む): 38592288

約数和(自身を除く): 17199698

約数列:

[1, 2, 5, 10, 503, 1006, 2515, 4253, 5030, 8506, 21265, 42530, 2139259, 4278518, 10696295, 21392590]

約数ペア:

[(1, 21392590), (2, 10696295), (5, 4278518), (10, 2139259), (503, 42530), (1006, 21265), (2515, 8506), (4253, 5030)]