21756660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1039}}^1$

素因数の和:1400

約数の個数: 48

約数和(自身を含む): 61152000

約数和(自身を除く): 39395340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 1039, 1047, 1396, 1745, 2078, 2094, 3117, 3490, 4156, 4188, 5195, 5235, 6234, 6980, 10390, 10470, 12468, 15585, 20780, 20940, 31170, 62340, 362611, 725222, 1087833, 1450444, 1813055, 2175666, 3626110, 4351332, 5439165, 7252220, 10878330, 21756660]

約数ペア:

[(1, 21756660), (2, 10878330), (3, 7252220), (4, 5439165), (5, 4351332), (6, 3626110), (10, 2175666), (12, 1813055), (15, 1450444), (20, 1087833), (30, 725222), (60, 362611), (349, 62340), (698, 31170), (1039, 20940), (1047, 20780), (1396, 15585), (1745, 12468), (2078, 10470), (2094, 10390), (3117, 6980), (3490, 6234), (4156, 5235), (4188, 5195)]