21516016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79103}}^1$

素因数の和:79128

約数の個数: 20

約数和(自身を含む): 44140032

約数和(自身を除く): 22624016

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79103, 158206, 316412, 632824, 1265648, 1344751, 2689502, 5379004, 10758008, 21516016]

約数ペア:

[(1, 21516016), (2, 10758008), (4, 5379004), (8, 2689502), (16, 1344751), (17, 1265648), (34, 632824), (68, 316412), (136, 158206), (272, 79103)]