78431031

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21841}}^1$

素因数の和:21876

約数の個数: 32

約数和(自身を含む): 139788800

約数和(自身を除く): 61357769

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 21841, 65523, 152887, 196569, 414979, 458661, 589707, 1244937, 1375983, 2904853, 3734811, 4127949, 8714559, 11204433, 26143677, 78431031]

約数ペア:

[(1, 78431031), (3, 26143677), (7, 11204433), (9, 8714559), (19, 4127949), (21, 3734811), (27, 2904853), (57, 1375983), (63, 1244937), (133, 589707), (171, 458661), (189, 414979), (399, 196569), (513, 152887), (1197, 65523), (3591, 21841)]