20784984

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{601}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 57214080

約数和(自身を除く): 36429096

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 131, 132, 262, 264, 393, 524, 601, 786, 1048, 1202, 1441, 1572, 1803, 2404, 2882, 3144, 3606, 4323, 4808, 5764, 6611, 7212, 8646, 11528, 13222, 14424, 17292, 19833, 26444, 34584, 39666, 52888, 78731, 79332, 157462, 158664, 236193, 314924, 472386, 629848, 866041, 944772, 1732082, 1889544, 2598123, 3464164, 5196246, 6928328, 10392492, 20784984]

約数ペア:

[(1, 20784984), (2, 10392492), (3, 6928328), (4, 5196246), (6, 3464164), (8, 2598123), (11, 1889544), (12, 1732082), (22, 944772), (24, 866041), (33, 629848), (44, 472386), (66, 314924), (88, 236193), (131, 158664), (132, 157462), (262, 79332), (264, 78731), (393, 52888), (524, 39666), (601, 34584), (786, 26444), (1048, 19833), (1202, 17292), (1441, 14424), (1572, 13222), (1803, 11528), (2404, 8646), (2882, 7212), (3144, 6611), (3606, 5764), (4323, 4808)]