21163160

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11257}}^1$

素因数の和:11315

約数の個数: 32

約数和(自身を含む): 48634560

約数和(自身を除く): 27471400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11257, 22514, 45028, 56285, 90056, 112570, 225140, 450280, 529079, 1058158, 2116316, 2645395, 4232632, 5290790, 10581580, 21163160]

約数ペア:

[(1, 21163160), (2, 10581580), (4, 5290790), (5, 4232632), (8, 2645395), (10, 2116316), (20, 1058158), (40, 529079), (47, 450280), (94, 225140), (188, 112570), (235, 90056), (376, 56285), (470, 45028), (940, 22514), (1880, 11257)]