20138916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1217}}^1$

素因数の和:1428

約数の個数: 48

約数和(自身を含む): 54020736

約数和(自身を除く): 33881820

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1217, 1379, 2364, 2434, 2758, 3651, 4137, 4868, 5516, 7302, 8274, 8519, 14604, 16548, 17038, 25557, 34076, 51114, 102228, 239749, 479498, 719247, 958996, 1438494, 1678243, 2876988, 3356486, 5034729, 6712972, 10069458, 20138916]

約数ペア:

[(1, 20138916), (2, 10069458), (3, 6712972), (4, 5034729), (6, 3356486), (7, 2876988), (12, 1678243), (14, 1438494), (21, 958996), (28, 719247), (42, 479498), (84, 239749), (197, 102228), (394, 51114), (591, 34076), (788, 25557), (1182, 17038), (1217, 16548), (1379, 14604), (2364, 8519), (2434, 8274), (2758, 7302), (3651, 5516), (4137, 4868)]