18630684

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 49297248

約数和(自身を除く): 30666564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 71, 74, 111, 142, 148, 197, 213, 222, 284, 333, 394, 426, 444, 591, 639, 666, 788, 852, 1182, 1278, 1332, 1773, 2364, 2556, 2627, 3546, 5254, 7092, 7289, 7881, 10508, 13987, 14578, 15762, 21867, 23643, 27974, 29156, 31524, 41961, 43734, 47286, 55948, 65601, 83922, 87468, 94572, 125883, 131202, 167844, 251766, 262404, 503532, 517519, 1035038, 1552557, 2070076, 3105114, 4657671, 6210228, 9315342, 18630684]

約数ペア:

[(1, 18630684), (2, 9315342), (3, 6210228), (4, 4657671), (6, 3105114), (9, 2070076), (12, 1552557), (18, 1035038), (36, 517519), (37, 503532), (71, 262404), (74, 251766), (111, 167844), (142, 131202), (148, 125883), (197, 94572), (213, 87468), (222, 83922), (284, 65601), (333, 55948), (394, 47286), (426, 43734), (444, 41961), (591, 31524), (639, 29156), (666, 27974), (788, 23643), (852, 21867), (1182, 15762), (1278, 14578), (1332, 13987), (1773, 10508), (2364, 7881), (2556, 7289), (2627, 7092), (3546, 5254)]