21132420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3631}}^1$

素因数の和:3740

約数の個数: 48

約数和(自身を含む): 59797248

約数和(自身を除く): 38664828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3631, 5820, 7262, 10893, 14524, 18155, 21786, 36310, 43572, 54465, 72620, 108930, 217860, 352207, 704414, 1056621, 1408828, 1761035, 2113242, 3522070, 4226484, 5283105, 7044140, 10566210, 21132420]

約数ペア:

[(1, 21132420), (2, 10566210), (3, 7044140), (4, 5283105), (5, 4226484), (6, 3522070), (10, 2113242), (12, 1761035), (15, 1408828), (20, 1056621), (30, 704414), (60, 352207), (97, 217860), (194, 108930), (291, 72620), (388, 54465), (485, 43572), (582, 36310), (970, 21786), (1164, 18155), (1455, 14524), (1940, 10893), (2910, 7262), (3631, 5820)]