821219

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:194

約数の個数: 16

約数和(自身を含む): 1018368

約数和(自身を除く): 197149

約数列:

[1, 7, 17, 67, 103, 119, 469, 721, 1139, 1751, 6901, 7973, 12257, 48307, 117317, 821219]

約数ペア:

[(1, 821219), (7, 117317), (17, 48307), (67, 12257), (103, 7973), (119, 6901), (469, 1751), (721, 1139)]