19974865708

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{67819}}^1$

素因数の和:68054

約数の個数: 48

約数和(自身を含む): 40804852480

約数和(自身を除く): 20829986772

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 157, 268, 314, 469, 628, 938, 1099, 1876, 2198, 4396, 10519, 21038, 42076, 67819, 73633, 135638, 147266, 271276, 294532, 474733, 949466, 1898932, 4543873, 9087746, 10647583, 18175492, 21295166, 31807111, 42590332, 63614222, 74533081, 127228444, 149066162, 298132324, 713388061, 1426776122, 2853552244, 4993716427, 9987432854, 19974865708]

約数ペア:

[(1, 19974865708), (2, 9987432854), (4, 4993716427), (7, 2853552244), (14, 1426776122), (28, 713388061), (67, 298132324), (134, 149066162), (157, 127228444), (268, 74533081), (314, 63614222), (469, 42590332), (628, 31807111), (938, 21295166), (1099, 18175492), (1876, 10647583), (2198, 9087746), (4396, 4543873), (10519, 1898932), (21038, 949466), (42076, 474733), (67819, 294532), (73633, 271276), (135638, 147266)]