21000304816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{113041}}^1$

素因数の和:113749

約数の個数: 40

約数和(自身を含む): 43144966224

約数和(自身を除く): 22144661408

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 683, 1366, 2732, 5464, 10928, 11611, 23222, 46444, 92888, 113041, 185776, 226082, 452164, 904328, 1808656, 1921697, 3843394, 7686788, 15373576, 30747152, 77207003, 154414006, 308828012, 617656024, 1235312048, 1312519051, 2625038102, 5250076204, 10500152408, 21000304816]

約数ペア:

[(1, 21000304816), (2, 10500152408), (4, 5250076204), (8, 2625038102), (16, 1312519051), (17, 1235312048), (34, 617656024), (68, 308828012), (136, 154414006), (272, 77207003), (683, 30747152), (1366, 15373576), (2732, 7686788), (5464, 3843394), (10928, 1921697), (11611, 1808656), (23222, 904328), (46444, 452164), (92888, 226082), (113041, 185776)]