18699870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{12721}}^1$

素因数の和:12745

約数の個数: 48

約数和(自身を含む): 52211088

約数和(自身を除く): 33511218

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 12721, 25442, 38163, 63605, 76326, 89047, 127210, 178094, 190815, 267141, 381630, 445235, 534282, 623329, 890470, 1246658, 1335705, 1869987, 2671410, 3116645, 3739974, 6233290, 9349935, 18699870]

約数ペア:

[(1, 18699870), (2, 9349935), (3, 6233290), (5, 3739974), (6, 3116645), (7, 2671410), (10, 1869987), (14, 1335705), (15, 1246658), (21, 890470), (30, 623329), (35, 534282), (42, 445235), (49, 381630), (70, 267141), (98, 190815), (105, 178094), (147, 127210), (210, 89047), (245, 76326), (294, 63605), (490, 38163), (735, 25442), (1470, 12721)]