42387723

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{15647}}^1$

素因数の和:15703

約数の個数: 24

約数和(自身を含む): 71605248

約数和(自身を除く): 29217525

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 15647, 46941, 109529, 140823, 328587, 672821, 985761, 2018463, 4709747, 6055389, 14129241, 42387723]

約数ペア:

[(1, 42387723), (3, 14129241), (7, 6055389), (9, 4709747), (21, 2018463), (43, 985761), (63, 672821), (129, 328587), (301, 140823), (387, 109529), (903, 46941), (2709, 15647)]