19961508

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3347}}^1$

素因数の和:3432

約数の個数: 48

約数和(自身を含む): 53996544

約数和(自身を除く): 34035036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3347, 5964, 6694, 10041, 13388, 20082, 23429, 40164, 46858, 70287, 93716, 140574, 237637, 281148, 475274, 712911, 950548, 1425822, 1663459, 2851644, 3326918, 4990377, 6653836, 9980754, 19961508]

約数ペア:

[(1, 19961508), (2, 9980754), (3, 6653836), (4, 4990377), (6, 3326918), (7, 2851644), (12, 1663459), (14, 1425822), (21, 950548), (28, 712911), (42, 475274), (71, 281148), (84, 237637), (142, 140574), (213, 93716), (284, 70287), (426, 46858), (497, 40164), (852, 23429), (994, 20082), (1491, 13388), (1988, 10041), (2982, 6694), (3347, 5964)]