21603080

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11491}}^1$

素因数の和:11549

約数の個数: 32

約数和(自身を含む): 49645440

約数和(自身を除く): 28042360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11491, 22982, 45964, 57455, 91928, 114910, 229820, 459640, 540077, 1080154, 2160308, 2700385, 4320616, 5400770, 10801540, 21603080]

約数ペア:

[(1, 21603080), (2, 10801540), (4, 5400770), (5, 4320616), (8, 2700385), (10, 2160308), (20, 1080154), (40, 540077), (47, 459640), (94, 229820), (188, 114910), (235, 91928), (376, 57455), (470, 45964), (940, 22982), (1880, 11491)]