18897816

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:784

約数の個数: 64

約数和(自身を含む): 54362880

約数和(自身を除く): 35465064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 197, 394, 571, 591, 788, 1142, 1182, 1379, 1576, 1713, 2284, 2364, 2758, 3426, 3997, 4137, 4568, 4728, 5516, 6852, 7994, 8274, 11032, 11991, 13704, 15988, 16548, 23982, 31976, 33096, 47964, 95928, 112487, 224974, 337461, 449948, 674922, 787409, 899896, 1349844, 1574818, 2362227, 2699688, 3149636, 4724454, 6299272, 9448908, 18897816]

約数ペア:

[(1, 18897816), (2, 9448908), (3, 6299272), (4, 4724454), (6, 3149636), (7, 2699688), (8, 2362227), (12, 1574818), (14, 1349844), (21, 899896), (24, 787409), (28, 674922), (42, 449948), (56, 337461), (84, 224974), (168, 112487), (197, 95928), (394, 47964), (571, 33096), (591, 31976), (788, 23982), (1142, 16548), (1182, 15988), (1379, 13704), (1576, 11991), (1713, 11032), (2284, 8274), (2364, 7994), (2758, 6852), (3426, 5516), (3997, 4728), (4137, 4568)]