19928488

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{277}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 41508180

約数和(自身を除く): 21579692

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 277, 391, 529, 554, 782, 1058, 1108, 1564, 2116, 2216, 3128, 4232, 4709, 6371, 8993, 9418, 12742, 17986, 18836, 25484, 35972, 37672, 50968, 71944, 108307, 146533, 216614, 293066, 433228, 586132, 866456, 1172264, 2491061, 4982122, 9964244, 19928488]

約数ペア:

[(1, 19928488), (2, 9964244), (4, 4982122), (8, 2491061), (17, 1172264), (23, 866456), (34, 586132), (46, 433228), (68, 293066), (92, 216614), (136, 146533), (184, 108307), (277, 71944), (391, 50968), (529, 37672), (554, 35972), (782, 25484), (1058, 18836), (1108, 17986), (1564, 12742), (2116, 9418), (2216, 8993), (3128, 6371), (4232, 4709)]