20691244

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2557}}^1$

素因数の和:2602

約数の個数: 36

約数和(自身を含む): 43977136

約数和(自身を除く): 23285892

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 289, 476, 578, 1156, 2023, 2557, 4046, 5114, 8092, 10228, 17899, 35798, 43469, 71596, 86938, 173876, 304283, 608566, 738973, 1217132, 1477946, 2955892, 5172811, 10345622, 20691244]

約数ペア:

[(1, 20691244), (2, 10345622), (4, 5172811), (7, 2955892), (14, 1477946), (17, 1217132), (28, 738973), (34, 608566), (68, 304283), (119, 173876), (238, 86938), (289, 71596), (476, 43469), (578, 35798), (1156, 17899), (2023, 10228), (2557, 8092), (4046, 5114)]