21428624

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5171}}^1$

素因数の和:5223

約数の個数: 40

約数和(自身を含む): 48740928

約数和(自身を除く): 27312304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 5171, 10342, 20684, 36197, 41368, 72394, 82736, 144788, 191327, 289576, 382654, 579152, 765308, 1339289, 1530616, 2678578, 3061232, 5357156, 10714312, 21428624]

約数ペア:

[(1, 21428624), (2, 10714312), (4, 5357156), (7, 3061232), (8, 2678578), (14, 1530616), (16, 1339289), (28, 765308), (37, 579152), (56, 382654), (74, 289576), (112, 191327), (148, 144788), (259, 82736), (296, 72394), (518, 41368), (592, 36197), (1036, 20684), (2072, 10342), (4144, 5171)]