21049107

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{547}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 28618752

約数和(自身を除く): 7569645

約数列:

[1, 3, 101, 127, 303, 381, 547, 1641, 12827, 38481, 55247, 69469, 165741, 208407, 7016369, 21049107]

約数ペア:

[(1, 21049107), (3, 7016369), (101, 208407), (127, 165741), (303, 69469), (381, 55247), (547, 38481), (1641, 12827)]