20555374

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 36780480

約数和(自身を除く): 16225106

約数列:

[1, 2, 7, 14, 29, 58, 197, 203, 257, 394, 406, 514, 1379, 1799, 2758, 3598, 5713, 7453, 11426, 14906, 39991, 50629, 52171, 79982, 101258, 104342, 354403, 708806, 1468241, 2936482, 10277687, 20555374]

約数ペア:

[(1, 20555374), (2, 10277687), (7, 2936482), (14, 1468241), (29, 708806), (58, 354403), (197, 104342), (203, 101258), (257, 79982), (394, 52171), (406, 50629), (514, 39991), (1379, 14906), (1799, 11426), (2758, 7453), (3598, 5713)]