18787188

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 51710400

約数和(自身を除く): 32923212

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 89, 98, 147, 178, 196, 267, 294, 356, 359, 534, 588, 623, 718, 1068, 1077, 1246, 1436, 1869, 2154, 2492, 2513, 3738, 4308, 4361, 5026, 7476, 7539, 8722, 10052, 13083, 15078, 17444, 17591, 26166, 30156, 31951, 35182, 52332, 52773, 63902, 70364, 95853, 105546, 127804, 191706, 211092, 223657, 383412, 447314, 670971, 894628, 1341942, 1565599, 2683884, 3131198, 4696797, 6262396, 9393594, 18787188]

約数ペア:

[(1, 18787188), (2, 9393594), (3, 6262396), (4, 4696797), (6, 3131198), (7, 2683884), (12, 1565599), (14, 1341942), (21, 894628), (28, 670971), (42, 447314), (49, 383412), (84, 223657), (89, 211092), (98, 191706), (147, 127804), (178, 105546), (196, 95853), (267, 70364), (294, 63902), (356, 52773), (359, 52332), (534, 35182), (588, 31951), (623, 30156), (718, 26166), (1068, 17591), (1077, 17444), (1246, 15078), (1436, 13083), (1869, 10052), (2154, 8722), (2492, 7539), (2513, 7476), (3738, 5026), (4308, 4361)]