168240215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{21391}}^1$

素因数の和:21431

約数の個数: 24

約数和(自身を含む): 238991424

約数和(自身を除く): 70751209

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 7865, 21391, 106955, 235301, 278083, 1176505, 1390415, 2588311, 3058913, 12941555, 15294565, 33648043, 168240215]

約数ペア:

[(1, 168240215), (5, 33648043), (11, 15294565), (13, 12941555), (55, 3058913), (65, 2588311), (121, 1390415), (143, 1176505), (605, 278083), (715, 235301), (1573, 106955), (7865, 21391)]