20677928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4691}}^1$

素因数の和:4745

約数の個数: 32

約数和(自身を含む): 42228000

約数和(自身を除く): 21550072

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 76, 116, 152, 232, 551, 1102, 2204, 4408, 4691, 9382, 18764, 37528, 89129, 136039, 178258, 272078, 356516, 544156, 713032, 1088312, 2584741, 5169482, 10338964, 20677928]

約数ペア:

[(1, 20677928), (2, 10338964), (4, 5169482), (8, 2584741), (19, 1088312), (29, 713032), (38, 544156), (58, 356516), (76, 272078), (116, 178258), (152, 136039), (232, 89129), (551, 37528), (1102, 18764), (2204, 9382), (4408, 4691)]