20887204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 41143536

約数和(自身を除く): 20256332

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 97, 101, 164, 194, 202, 388, 404, 533, 1066, 1261, 1313, 2132, 2522, 2626, 3977, 4141, 5044, 5252, 7954, 8282, 9797, 15908, 16564, 19594, 39188, 51701, 53833, 103402, 107666, 127361, 206804, 215332, 254722, 401677, 509444, 803354, 1606708, 5221801, 10443602, 20887204]

約数ペア:

[(1, 20887204), (2, 10443602), (4, 5221801), (13, 1606708), (26, 803354), (41, 509444), (52, 401677), (82, 254722), (97, 215332), (101, 206804), (164, 127361), (194, 107666), (202, 103402), (388, 53833), (404, 51701), (533, 39188), (1066, 19594), (1261, 16564), (1313, 15908), (2132, 9797), (2522, 8282), (2626, 7954), (3977, 5252), (4141, 5044)]