21000833308

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4057}}^1\times {\mathrm{14221}}^1$

素因数の和:18302

約数の個数: 48

約数和(自身を含む): 45246894784

約数和(自身を除く): 24246061476

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 4057, 8114, 14221, 16228, 28399, 28442, 52741, 56798, 56884, 99547, 105482, 113596, 184873, 199094, 210964, 369187, 369746, 398188, 738374, 739492, 1294111, 1476748, 2588222, 5176444, 57694597, 115389194, 230778388, 403862179, 750029761, 807724358, 1500059522, 1615448716, 3000119044, 5250208327, 10500416654, 21000833308]

約数ペア:

[(1, 21000833308), (2, 10500416654), (4, 5250208327), (7, 3000119044), (13, 1615448716), (14, 1500059522), (26, 807724358), (28, 750029761), (52, 403862179), (91, 230778388), (182, 115389194), (364, 57694597), (4057, 5176444), (8114, 2588222), (14221, 1476748), (16228, 1294111), (28399, 739492), (28442, 738374), (52741, 398188), (56798, 369746), (56884, 369187), (99547, 210964), (105482, 199094), (113596, 184873)]