20851635

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2797}}^1$

素因数の和:2883

約数の個数: 32

約数和(自身を含む): 38679552

約数和(自身を除く): 17827917

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 2797, 7455, 8391, 13985, 19579, 41955, 58737, 97895, 198587, 293685, 595761, 992935, 1390109, 2978805, 4170327, 6950545, 20851635]

約数ペア:

[(1, 20851635), (3, 6950545), (5, 4170327), (7, 2978805), (15, 1390109), (21, 992935), (35, 595761), (71, 293685), (105, 198587), (213, 97895), (355, 58737), (497, 41955), (1065, 19579), (1491, 13985), (2485, 8391), (2797, 7455)]