81643646

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9901}}^1$

素因数の和:9960

約数の個数: 32

約数和(自身を含む): 152094720

約数和(自身を除く): 70451074

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 4123, 8246, 9901, 19802, 69307, 138614, 188119, 306931, 376238, 613862, 1316833, 2148517, 2633666, 4297034, 5831689, 11663378, 40821823, 81643646]

約数ペア:

[(1, 81643646), (2, 40821823), (7, 11663378), (14, 5831689), (19, 4297034), (31, 2633666), (38, 2148517), (62, 1316833), (133, 613862), (217, 376238), (266, 306931), (434, 188119), (589, 138614), (1178, 69307), (4123, 19802), (8246, 9901)]