1390670253

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{361871}}^1$

素因数の和:361945

約数の個数: 24

約数和(自身を含む): 2333350656

約数和(自身を除く): 942680403

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 361871, 1085613, 2533097, 3256839, 7599291, 22074131, 22797873, 66222393, 154518917, 198667179, 463556751, 1390670253]

約数ペア:

[(1, 1390670253), (3, 463556751), (7, 198667179), (9, 154518917), (21, 66222393), (61, 22797873), (63, 22074131), (183, 7599291), (427, 3256839), (549, 2533097), (1281, 1085613), (3843, 361871)]