21984970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2473}}^1$

素因数の和:2614

約数の個数: 32

約数和(自身を含む): 45600768

約数和(自身を除く): 23615798

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 2473, 4445, 4946, 8890, 12365, 17311, 24730, 34622, 86555, 173110, 314071, 628142, 1570355, 2198497, 3140710, 4396994, 10992485, 21984970]

約数ペア:

[(1, 21984970), (2, 10992485), (5, 4396994), (7, 3140710), (10, 2198497), (14, 1570355), (35, 628142), (70, 314071), (127, 173110), (254, 86555), (635, 34622), (889, 24730), (1270, 17311), (1778, 12365), (2473, 8890), (4445, 4946)]