19911108

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{809}}^1$

素因数の和:1116

約数の個数: 48

約数和(自身を含む): 53343360

約数和(自身を除く): 33432252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 293, 586, 809, 879, 1172, 1618, 1758, 2051, 2427, 3236, 3516, 4102, 4854, 5663, 6153, 8204, 9708, 11326, 12306, 16989, 22652, 24612, 33978, 67956, 237037, 474074, 711111, 948148, 1422222, 1659259, 2844444, 3318518, 4977777, 6637036, 9955554, 19911108]

約数ペア:

[(1, 19911108), (2, 9955554), (3, 6637036), (4, 4977777), (6, 3318518), (7, 2844444), (12, 1659259), (14, 1422222), (21, 948148), (28, 711111), (42, 474074), (84, 237037), (293, 67956), (586, 33978), (809, 24612), (879, 22652), (1172, 16989), (1618, 12306), (1758, 11326), (2051, 9708), (2427, 8204), (3236, 6153), (3516, 5663), (4102, 4854)]