20210890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1613}}^1$

素因数の和:1806

約数の個数: 32

約数和(自身を含む): 41834880

約数和(自身を除く): 21623990

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 179, 358, 895, 1253, 1613, 1790, 2506, 3226, 6265, 8065, 11291, 12530, 16130, 22582, 56455, 112910, 288727, 577454, 1443635, 2021089, 2887270, 4042178, 10105445, 20210890]

約数ペア:

[(1, 20210890), (2, 10105445), (5, 4042178), (7, 2887270), (10, 2021089), (14, 1443635), (35, 577454), (70, 288727), (179, 112910), (358, 56455), (895, 22582), (1253, 16130), (1613, 12530), (1790, 11291), (2506, 8065), (3226, 6265)]