20604654

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3803}}^1$

素因数の和:3861

約数の個数: 48

約数和(自身を含む): 52221312

約数和(自身を除く): 31616658

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 3803, 5418, 7606, 11409, 22818, 26621, 34227, 53242, 68454, 79863, 159726, 163529, 239589, 327058, 479178, 490587, 981174, 1144703, 1471761, 2289406, 2943522, 3434109, 6868218, 10302327, 20604654]

約数ペア:

[(1, 20604654), (2, 10302327), (3, 6868218), (6, 3434109), (7, 2943522), (9, 2289406), (14, 1471761), (18, 1144703), (21, 981174), (42, 490587), (43, 479178), (63, 327058), (86, 239589), (126, 163529), (129, 159726), (258, 79863), (301, 68454), (387, 53242), (602, 34227), (774, 26621), (903, 22818), (1806, 11409), (2709, 7606), (3803, 5418)]