21241185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2273}}^1$

素因数の和:2377

約数の個数: 32

約数和(自身を含む): 39294720

約数和(自身を除く): 18053535

約数列:

[1, 3, 5, 7, 15, 21, 35, 89, 105, 267, 445, 623, 1335, 1869, 2273, 3115, 6819, 9345, 11365, 15911, 34095, 47733, 79555, 202297, 238665, 606891, 1011485, 1416079, 3034455, 4248237, 7080395, 21241185]

約数ペア:

[(1, 21241185), (3, 7080395), (5, 4248237), (7, 3034455), (15, 1416079), (21, 1011485), (35, 606891), (89, 238665), (105, 202297), (267, 79555), (445, 47733), (623, 34095), (1335, 15911), (1869, 11365), (2273, 9345), (3115, 6819)]