21000948994

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{15973}}^1$

素因数の和:16290

約数の個数: 32

約数和(自身を含む): 32792449536

約数和(自身を除く): 11791500542

約数列:

[1, 2, 47, 71, 94, 142, 197, 394, 3337, 6674, 9259, 13987, 15973, 18518, 27974, 31946, 657389, 750731, 1134083, 1314778, 1501462, 2268166, 3146681, 6293362, 53301901, 106603802, 147894007, 223414351, 295788014, 446828702, 10500474497, 21000948994]

約数ペア:

[(1, 21000948994), (2, 10500474497), (47, 446828702), (71, 295788014), (94, 223414351), (142, 147894007), (197, 106603802), (394, 53301901), (3337, 6293362), (6674, 3146681), (9259, 2268166), (13987, 1501462), (15973, 1314778), (18518, 1134083), (27974, 750731), (31946, 657389)]