19998468

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{3779}}^1$

素因数の和:3806

約数の個数: 72

約数和(自身を含む): 60328800

約数和(自身を除く): 40330332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 3779, 5292, 7558, 11337, 15116, 22674, 26453, 34011, 45348, 52906, 68022, 79359, 102033, 105812, 136044, 158718, 185171, 204066, 238077, 317436, 370342, 408132, 476154, 555513, 714231, 740684, 952308, 1111026, 1428462, 1666539, 2222052, 2856924, 3333078, 4999617, 6666156, 9999234, 19998468]

約数ペア:

[(1, 19998468), (2, 9999234), (3, 6666156), (4, 4999617), (6, 3333078), (7, 2856924), (9, 2222052), (12, 1666539), (14, 1428462), (18, 1111026), (21, 952308), (27, 740684), (28, 714231), (36, 555513), (42, 476154), (49, 408132), (54, 370342), (63, 317436), (84, 238077), (98, 204066), (108, 185171), (126, 158718), (147, 136044), (189, 105812), (196, 102033), (252, 79359), (294, 68022), (378, 52906), (441, 45348), (588, 34011), (756, 26453), (882, 22674), (1323, 15116), (1764, 11337), (2646, 7558), (3779, 5292)]