20678308

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{827}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 23834972

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 76, 94, 133, 188, 266, 329, 532, 658, 827, 893, 1316, 1654, 1786, 3308, 3572, 5789, 6251, 11578, 12502, 15713, 23156, 25004, 31426, 38869, 62852, 77738, 109991, 155476, 219982, 272083, 439964, 544166, 738511, 1088332, 1477022, 2954044, 5169577, 10339154, 20678308]

約数ペア:

[(1, 20678308), (2, 10339154), (4, 5169577), (7, 2954044), (14, 1477022), (19, 1088332), (28, 738511), (38, 544166), (47, 439964), (76, 272083), (94, 219982), (133, 155476), (188, 109991), (266, 77738), (329, 62852), (532, 38869), (658, 31426), (827, 25004), (893, 23156), (1316, 15713), (1654, 12502), (1786, 11578), (3308, 6251), (3572, 5789)]