20717367573

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{5197}}^1$

素因数の和:5426

約数の個数: 64

約数和(自身を含む): 33905930240

約数和(自身を除く): 13188562667

約数列:

[1, 3, 7, 19, 21, 57, 97, 103, 133, 291, 309, 399, 679, 721, 1843, 1957, 2037, 2163, 5197, 5529, 5871, 9991, 12901, 13699, 15591, 29973, 36379, 38703, 41097, 69937, 98743, 109137, 189829, 209811, 296229, 504109, 535291, 569487, 691201, 1328803, 1512327, 1605873, 2073603, 3528763, 3747037, 3986409, 9578071, 10170529, 10586289, 11241111, 28734213, 30511587, 51923227, 67046497, 71193703, 155769681, 201139491, 213581109, 363462589, 986541313, 1090387767, 2959623939, 6905789191, 20717367573]

約数ペア:

[(1, 20717367573), (3, 6905789191), (7, 2959623939), (19, 1090387767), (21, 986541313), (57, 363462589), (97, 213581109), (103, 201139491), (133, 155769681), (291, 71193703), (309, 67046497), (399, 51923227), (679, 30511587), (721, 28734213), (1843, 11241111), (1957, 10586289), (2037, 10170529), (2163, 9578071), (5197, 3986409), (5529, 3747037), (5871, 3528763), (9991, 2073603), (12901, 1605873), (13699, 1512327), (15591, 1328803), (29973, 691201), (36379, 569487), (38703, 535291), (41097, 504109), (69937, 296229), (98743, 209811), (109137, 189829)]