20716318

素因数分解:

$2^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1543}}^1$

素因数の和:1696

約数の個数: 24

約数和(自身を含む): 36435312

約数和(自身を除く): 15718994

約数列:

[1, 2, 7, 14, 49, 98, 137, 274, 959, 1543, 1918, 3086, 6713, 10801, 13426, 21602, 75607, 151214, 211391, 422782, 1479737, 2959474, 10358159, 20716318]

約数ペア:

[(1, 20716318), (2, 10358159), (7, 2959474), (14, 1479737), (49, 422782), (98, 211391), (137, 151214), (274, 75607), (959, 21602), (1543, 13426), (1918, 10801), (3086, 6713)]