253138431

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{2213}}^1$

素因数の和:2655

約数の個数: 32

約数和(自身を含む): 416586240

約数和(自身を除く): 163447809

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 419, 1257, 2213, 2933, 5447, 6639, 8799, 15491, 16341, 28769, 38129, 46473, 86307, 114387, 201383, 604149, 927247, 2781741, 6490729, 12054211, 19472187, 36162633, 84379477, 253138431]

約数ペア:

[(1, 253138431), (3, 84379477), (7, 36162633), (13, 19472187), (21, 12054211), (39, 6490729), (91, 2781741), (273, 927247), (419, 604149), (1257, 201383), (2213, 114387), (2933, 86307), (5447, 46473), (6639, 38129), (8799, 28769), (15491, 16341)]