21131446215

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2467}}^1\times {\mathrm{51913}}^1$

素因数の和:54399

約数の個数: 32

約数和(自身を含む): 36899640576

約数和(自身を除く): 15768194361

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 2467, 7401, 12335, 27137, 37005, 51913, 81411, 135685, 155739, 259565, 407055, 571043, 778695, 1713129, 2855215, 8565645, 128069371, 384208113, 640346855, 1408763081, 1921040565, 4226289243, 7043815405, 21131446215]

約数ペア:

[(1, 21131446215), (3, 7043815405), (5, 4226289243), (11, 1921040565), (15, 1408763081), (33, 640346855), (55, 384208113), (165, 128069371), (2467, 8565645), (7401, 2855215), (12335, 1713129), (27137, 778695), (37005, 571043), (51913, 407055), (81411, 259565), (135685, 155739)]