215565847

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{743}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 260554752

約数和(自身を除く): 44988905

約数列:

[1, 7, 31, 49, 191, 217, 743, 1337, 1519, 5201, 5921, 9359, 23033, 36407, 41447, 141913, 161231, 290129, 993391, 1128617, 4399303, 6953737, 30795121, 215565847]

約数ペア:

[(1, 215565847), (7, 30795121), (31, 6953737), (49, 4399303), (191, 1128617), (217, 993391), (743, 290129), (1337, 161231), (1519, 141913), (5201, 41447), (5921, 36407), (9359, 23033)]