18215784

素因数分解:

$2^3\times 3^2\times {\mathrm{431}}^1\times {\mathrm{587}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 31317336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 431, 587, 862, 1174, 1293, 1724, 1761, 2348, 2586, 3448, 3522, 3879, 4696, 5172, 5283, 7044, 7758, 10344, 10566, 14088, 15516, 21132, 31032, 42264, 252997, 505994, 758991, 1011988, 1517982, 2023976, 2276973, 3035964, 4553946, 6071928, 9107892, 18215784]

約数ペア:

[(1, 18215784), (2, 9107892), (3, 6071928), (4, 4553946), (6, 3035964), (8, 2276973), (9, 2023976), (12, 1517982), (18, 1011988), (24, 758991), (36, 505994), (72, 252997), (431, 42264), (587, 31032), (862, 21132), (1174, 15516), (1293, 14088), (1724, 10566), (1761, 10344), (2348, 7758), (2586, 7044), (3448, 5283), (3522, 5172), (3879, 4696)]