71584317

素因数分解:

$3^4\times 7^1\times {\mathrm{191}}^1\times {\mathrm{661}}^1$

素因数の和:871

約数の個数: 40

約数和(自身を含む): 123036672

約数和(自身を除く): 51452355

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 191, 567, 573, 661, 1337, 1719, 1983, 4011, 4627, 5157, 5949, 12033, 13881, 15471, 17847, 36099, 41643, 53541, 108297, 124929, 126251, 374787, 378753, 883757, 1136259, 2651271, 3408777, 7953813, 10226331, 23861439, 71584317]

約数ペア:

[(1, 71584317), (3, 23861439), (7, 10226331), (9, 7953813), (21, 3408777), (27, 2651271), (63, 1136259), (81, 883757), (189, 378753), (191, 374787), (567, 126251), (573, 124929), (661, 108297), (1337, 53541), (1719, 41643), (1983, 36099), (4011, 17847), (4627, 15471), (5157, 13881), (5949, 12033)]