21632680

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{1249}}^1$

素因数の和:1693

約数の個数: 32

約数和(自身を含む): 48825000

約数和(自身を除く): 27192320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1249, 1732, 2165, 2498, 3464, 4330, 4996, 6245, 8660, 9992, 12490, 17320, 24980, 49960, 540817, 1081634, 2163268, 2704085, 4326536, 5408170, 10816340, 21632680]

約数ペア:

[(1, 21632680), (2, 10816340), (4, 5408170), (5, 4326536), (8, 2704085), (10, 2163268), (20, 1081634), (40, 540817), (433, 49960), (866, 24980), (1249, 17320), (1732, 12490), (2165, 9992), (2498, 8660), (3464, 6245), (4330, 4996)]