20621939824

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{2357}}^1\times {\mathrm{5309}}^1$

素因数の和:7777

約数の個数: 40

約数和(自身を含む): 40367639520

約数和(自身を除く): 19745699696

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 2357, 4714, 5309, 9428, 10618, 18856, 21236, 37712, 42472, 84944, 242771, 485542, 546827, 971084, 1093654, 1942168, 2187308, 3884336, 4374616, 8749232, 12513313, 25026626, 50053252, 100106504, 200213008, 1288871239, 2577742478, 5155484956, 10310969912, 20621939824]

約数ペア:

[(1, 20621939824), (2, 10310969912), (4, 5155484956), (8, 2577742478), (16, 1288871239), (103, 200213008), (206, 100106504), (412, 50053252), (824, 25026626), (1648, 12513313), (2357, 8749232), (4714, 4374616), (5309, 3884336), (9428, 2187308), (10618, 1942168), (18856, 1093654), (21236, 971084), (37712, 546827), (42472, 485542), (84944, 242771)]