19997922

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1531}}^1$

素因数の和:1854

約数の個数: 32

約数和(自身を含む): 45886464

約数和(自身を除く): 25888542

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 311, 622, 933, 1531, 1866, 2177, 3062, 4354, 4593, 6531, 9186, 10717, 13062, 21434, 32151, 64302, 476141, 952282, 1428423, 2856846, 3332987, 6665974, 9998961, 19997922]

約数ペア:

[(1, 19997922), (2, 9998961), (3, 6665974), (6, 3332987), (7, 2856846), (14, 1428423), (21, 952282), (42, 476141), (311, 64302), (622, 32151), (933, 21434), (1531, 13062), (1866, 10717), (2177, 9186), (3062, 6531), (4354, 4593)]