217620794

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 351644160

約数和(自身を除く): 134023366

約数列:

[1, 2, 19, 38, 61, 122, 223, 421, 446, 842, 1159, 2318, 4237, 7999, 8474, 13603, 15998, 25681, 27206, 51362, 93883, 187766, 258457, 487939, 516914, 975878, 1783777, 3567554, 5726863, 11453726, 108810397, 217620794]

約数ペア:

[(1, 217620794), (2, 108810397), (19, 11453726), (38, 5726863), (61, 3567554), (122, 1783777), (223, 975878), (421, 516914), (446, 487939), (842, 258457), (1159, 187766), (2318, 93883), (4237, 51362), (7999, 27206), (8474, 25681), (13603, 15998)]