18138918

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 42681600

約数和(自身を除く): 24542682

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 103, 147, 206, 294, 309, 599, 618, 721, 1198, 1442, 1797, 2163, 3594, 4193, 4326, 5047, 8386, 10094, 12579, 15141, 25158, 29351, 30282, 58702, 61697, 88053, 123394, 176106, 185091, 370182, 431879, 863758, 1295637, 2591274, 3023153, 6046306, 9069459, 18138918]

約数ペア:

[(1, 18138918), (2, 9069459), (3, 6046306), (6, 3023153), (7, 2591274), (14, 1295637), (21, 863758), (42, 431879), (49, 370182), (98, 185091), (103, 176106), (147, 123394), (206, 88053), (294, 61697), (309, 58702), (599, 30282), (618, 29351), (721, 25158), (1198, 15141), (1442, 12579), (1797, 10094), (2163, 8386), (3594, 5047), (4193, 4326)]