248361841

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 40

約数和(自身を含む): 319201960

約数和(自身を除く): 70840119

約数列:

[1, 7, 13, 49, 73, 91, 109, 343, 511, 637, 763, 949, 1417, 2401, 3577, 4459, 5341, 6643, 7957, 9919, 25039, 31213, 37387, 46501, 55699, 69433, 103441, 175273, 261709, 325507, 389893, 486031, 724087, 2278549, 2729251, 3402217, 5068609, 19104757, 35480263, 248361841]

約数ペア:

[(1, 248361841), (7, 35480263), (13, 19104757), (49, 5068609), (73, 3402217), (91, 2729251), (109, 2278549), (343, 724087), (511, 486031), (637, 389893), (763, 325507), (949, 261709), (1417, 175273), (2401, 103441), (3577, 69433), (4459, 55699), (5341, 46501), (6643, 37387), (7957, 31213), (9919, 25039)]