21671566

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 42550272

約数和(自身を除く): 20878706

約数列:

[1, 2, 7, 14, 17, 23, 34, 37, 46, 74, 107, 119, 161, 214, 238, 259, 322, 391, 518, 629, 749, 782, 851, 1258, 1498, 1702, 1819, 2461, 2737, 3638, 3959, 4403, 4922, 5474, 5957, 7918, 8806, 11914, 12733, 14467, 17227, 25466, 27713, 28934, 34454, 41837, 55426, 67303, 83674, 91057, 101269, 134606, 182114, 202538, 292859, 471121, 585718, 637399, 942242, 1274798, 1547969, 3095938, 10835783, 21671566]

約数ペア:

[(1, 21671566), (2, 10835783), (7, 3095938), (14, 1547969), (17, 1274798), (23, 942242), (34, 637399), (37, 585718), (46, 471121), (74, 292859), (107, 202538), (119, 182114), (161, 134606), (214, 101269), (238, 91057), (259, 83674), (322, 67303), (391, 55426), (518, 41837), (629, 34454), (749, 28934), (782, 27713), (851, 25466), (1258, 17227), (1498, 14467), (1702, 12733), (1819, 11914), (2461, 8806), (2737, 7918), (3638, 5957), (3959, 5474), (4403, 4922)]