21000604780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{92003}}^1$

素因数の和:92226

約数の個数: 48

約数和(自身を含む): 44932545504

約数和(自身を除く): 23931940724

約数列:

[1, 2, 4, 5, 10, 20, 101, 113, 202, 226, 404, 452, 505, 565, 1010, 1130, 2020, 2260, 11413, 22826, 45652, 57065, 92003, 114130, 184006, 228260, 368012, 460015, 920030, 1840060, 9292303, 10396339, 18584606, 20792678, 37169212, 41585356, 46461515, 51981695, 92923030, 103963390, 185846060, 207926780, 1050030239, 2100060478, 4200120956, 5250151195, 10500302390, 21000604780]

約数ペア:

[(1, 21000604780), (2, 10500302390), (4, 5250151195), (5, 4200120956), (10, 2100060478), (20, 1050030239), (101, 207926780), (113, 185846060), (202, 103963390), (226, 92923030), (404, 51981695), (452, 46461515), (505, 41585356), (565, 37169212), (1010, 20792678), (1130, 18584606), (2020, 10396339), (2260, 9292303), (11413, 1840060), (22826, 920030), (45652, 460015), (57065, 368012), (92003, 228260), (114130, 184006)]