19639216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{701}}^1$

素因数の和:829

約数の個数: 40

約数和(自身を含む): 40738464

約数和(自身を除く): 21099248

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 103, 136, 206, 272, 412, 701, 824, 1402, 1648, 1751, 2804, 3502, 5608, 7004, 11216, 11917, 14008, 23834, 28016, 47668, 72203, 95336, 144406, 190672, 288812, 577624, 1155248, 1227451, 2454902, 4909804, 9819608, 19639216]

約数ペア:

[(1, 19639216), (2, 9819608), (4, 4909804), (8, 2454902), (16, 1227451), (17, 1155248), (34, 577624), (68, 288812), (103, 190672), (136, 144406), (206, 95336), (272, 72203), (412, 47668), (701, 28016), (824, 23834), (1402, 14008), (1648, 11917), (1751, 11216), (2804, 7004), (3502, 5608)]