20996586

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1693}}^1$

素因数の和:1767

約数の個数: 48

約数和(自身を含む): 49945896

約数和(自身を除く): 28949310

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 1693, 2067, 3386, 4134, 5079, 6201, 10158, 12402, 15237, 22009, 30474, 44018, 66027, 89729, 132054, 179458, 198081, 269187, 396162, 538374, 807561, 1166477, 1615122, 2332954, 3499431, 6998862, 10498293, 20996586]

約数ペア:

[(1, 20996586), (2, 10498293), (3, 6998862), (6, 3499431), (9, 2332954), (13, 1615122), (18, 1166477), (26, 807561), (39, 538374), (53, 396162), (78, 269187), (106, 198081), (117, 179458), (159, 132054), (234, 89729), (318, 66027), (477, 44018), (689, 30474), (954, 22009), (1378, 15237), (1693, 12402), (2067, 10158), (3386, 6201), (4134, 5079)]