213978038

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{77137}}^1$

素因数の和:77231

約数の個数: 16

約数和(自身を含む): 342492720

約数和(自身を除く): 128514682

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 77137, 154274, 1465603, 2931206, 5631001, 11262002, 106989019, 213978038]

約数ペア:

[(1, 213978038), (2, 106989019), (19, 11262002), (38, 5631001), (73, 2931206), (146, 1465603), (1387, 154274), (2774, 77137)]