80007921

素因数分解:

$3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{3167}}^1$

素因数の和:3581

約数の個数: 24

約数和(自身を含む): 132447744

約数和(自身を除く): 52439823

約数列:

[1, 3, 7, 9, 21, 63, 401, 1203, 2807, 3167, 3609, 8421, 9501, 22169, 25263, 28503, 66507, 199521, 1269967, 3809901, 8889769, 11429703, 26669307, 80007921]

約数ペア:

[(1, 80007921), (3, 26669307), (7, 11429703), (9, 8889769), (21, 3809901), (63, 1269967), (401, 199521), (1203, 66507), (2807, 28503), (3167, 25263), (3609, 22169), (8421, 9501)]