81924129

素因数分解:

$3^4\times 7^2\times {\mathrm{20641}}^1$

素因数の和:20667

約数の個数: 30

約数和(自身を含む): 142367874

約数和(自身を除く): 60443745

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 20641, 61923, 144487, 185769, 433461, 557307, 1011409, 1300383, 1671921, 3034227, 3901149, 9102681, 11703447, 27308043, 81924129]

約数ペア:

[(1, 81924129), (3, 27308043), (7, 11703447), (9, 9102681), (21, 3901149), (27, 3034227), (49, 1671921), (63, 1300383), (81, 1011409), (147, 557307), (189, 433461), (441, 185769), (567, 144487), (1323, 61923), (3969, 20641)]