221963518

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{3271}}^1$

素因数の和:3448

約数の個数: 32

約数和(自身を含む): 393896448

約数和(自身を除く): 171932930

約数列:

[1, 2, 7, 14, 37, 74, 131, 259, 262, 518, 917, 1834, 3271, 4847, 6542, 9694, 22897, 33929, 45794, 67858, 121027, 242054, 428501, 847189, 857002, 1694378, 2999507, 5999014, 15854537, 31709074, 110981759, 221963518]

約数ペア:

[(1, 221963518), (2, 110981759), (7, 31709074), (14, 15854537), (37, 5999014), (74, 2999507), (131, 1694378), (259, 857002), (262, 847189), (518, 428501), (917, 242054), (1834, 121027), (3271, 67858), (4847, 45794), (6542, 33929), (9694, 22897)]