208989879

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{1279}}^1$

素因数の和:1571

約数の個数: 32

約数和(自身を含む): 330301440

約数和(自身を除く): 121311561

約数列:

[1, 3, 7, 21, 31, 93, 217, 251, 651, 753, 1279, 1757, 3837, 5271, 7781, 8953, 23343, 26859, 39649, 54467, 118947, 163401, 277543, 321029, 832629, 963087, 2247203, 6741609, 9951899, 29855697, 69663293, 208989879]

約数ペア:

[(1, 208989879), (3, 69663293), (7, 29855697), (21, 9951899), (31, 6741609), (93, 2247203), (217, 963087), (251, 832629), (651, 321029), (753, 277543), (1279, 163401), (1757, 118947), (3837, 54467), (5271, 39649), (7781, 26859), (8953, 23343)]