20513934

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 55014336

約数和(自身を除く): 34500402

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 61, 63, 102, 119, 122, 126, 153, 157, 183, 238, 306, 314, 357, 366, 427, 471, 549, 714, 854, 942, 1037, 1071, 1098, 1099, 1281, 1413, 2074, 2142, 2198, 2562, 2669, 2826, 3111, 3297, 3843, 5338, 6222, 6594, 7259, 7686, 8007, 9333, 9577, 9891, 14518, 16014, 18666, 18683, 19154, 19782, 21777, 24021, 28731, 37366, 43554, 48042, 56049, 57462, 65331, 67039, 86193, 112098, 130662, 134078, 162809, 168147, 172386, 201117, 325618, 336294, 402234, 488427, 603351, 976854, 1139663, 1206702, 1465281, 2279326, 2930562, 3418989, 6837978, 10256967, 20513934]

約数ペア:

[(1, 20513934), (2, 10256967), (3, 6837978), (6, 3418989), (7, 2930562), (9, 2279326), (14, 1465281), (17, 1206702), (18, 1139663), (21, 976854), (34, 603351), (42, 488427), (51, 402234), (61, 336294), (63, 325618), (102, 201117), (119, 172386), (122, 168147), (126, 162809), (153, 134078), (157, 130662), (183, 112098), (238, 86193), (306, 67039), (314, 65331), (357, 57462), (366, 56049), (427, 48042), (471, 43554), (549, 37366), (714, 28731), (854, 24021), (942, 21777), (1037, 19782), (1071, 19154), (1098, 18683), (1099, 18666), (1281, 16014), (1413, 14518), (2074, 9891), (2142, 9577), (2198, 9333), (2562, 8007), (2669, 7686), (2826, 7259), (3111, 6594), (3297, 6222), (3843, 5338)]