28940121

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3083}}^1$

素因数の和:3245

約数の個数: 24

約数和(自身を含む): 48110400

約数和(自身を除く): 19170279

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 3083, 3129, 9249, 9387, 21581, 27747, 64743, 194229, 459367, 1378101, 3215569, 4134303, 9646707, 28940121]

約数ペア:

[(1, 28940121), (3, 9646707), (7, 4134303), (9, 3215569), (21, 1378101), (63, 459367), (149, 194229), (447, 64743), (1043, 27747), (1341, 21581), (3083, 9387), (3129, 9249)]