1998978915

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{827}}^1\times {\mathrm{9479}}^1$

素因数の和:10331

約数の個数: 32

約数和(自身を含む): 3390958080

約数和(自身を除く): 1391979165

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 827, 2481, 4135, 9479, 12405, 14059, 28437, 42177, 47395, 70295, 142185, 161143, 210885, 483429, 805715, 2417145, 7839133, 23517399, 39195665, 117586995, 133265261, 399795783, 666326305, 1998978915]

約数ペア:

[(1, 1998978915), (3, 666326305), (5, 399795783), (15, 133265261), (17, 117586995), (51, 39195665), (85, 23517399), (255, 7839133), (827, 2417145), (2481, 805715), (4135, 483429), (9479, 210885), (12405, 161143), (14059, 142185), (28437, 70295), (42177, 47395)]