20402466

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:759

約数の個数: 64

約数和(自身を含む): 50488320

約数和(自身を除く): 30085854

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 691, 703, 777, 798, 1382, 1406, 1554, 2073, 2109, 4146, 4218, 4837, 4921, 9674, 9842, 13129, 14511, 14763, 25567, 26258, 29022, 29526, 39387, 51134, 76701, 78774, 91903, 153402, 178969, 183806, 275709, 357938, 485773, 536907, 551418, 971546, 1073814, 1457319, 2914638, 3400411, 6800822, 10201233, 20402466]

約数ペア:

[(1, 20402466), (2, 10201233), (3, 6800822), (6, 3400411), (7, 2914638), (14, 1457319), (19, 1073814), (21, 971546), (37, 551418), (38, 536907), (42, 485773), (57, 357938), (74, 275709), (111, 183806), (114, 178969), (133, 153402), (222, 91903), (259, 78774), (266, 76701), (399, 51134), (518, 39387), (691, 29526), (703, 29022), (777, 26258), (798, 25567), (1382, 14763), (1406, 14511), (1554, 13129), (2073, 9842), (2109, 9674), (4146, 4921), (4218, 4837)]