19774916

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 40943616

約数和(自身を除く): 21168700

約数列:

[1, 2, 4, 7, 14, 28, 67, 83, 127, 134, 166, 254, 268, 332, 469, 508, 581, 889, 938, 1162, 1778, 1876, 2324, 3556, 5561, 8509, 10541, 11122, 17018, 21082, 22244, 34036, 38927, 42164, 59563, 73787, 77854, 119126, 147574, 155708, 238252, 295148, 706247, 1412494, 2824988, 4943729, 9887458, 19774916]

約数ペア:

[(1, 19774916), (2, 9887458), (4, 4943729), (7, 2824988), (14, 1412494), (28, 706247), (67, 295148), (83, 238252), (127, 155708), (134, 147574), (166, 119126), (254, 77854), (268, 73787), (332, 59563), (469, 42164), (508, 38927), (581, 34036), (889, 22244), (938, 21082), (1162, 17018), (1778, 11122), (1876, 10541), (2324, 8509), (3556, 5561)]