21295295

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1033}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 31764480

約数和(自身を除く): 10469185

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 589, 665, 1033, 1085, 2945, 4123, 5165, 7231, 19627, 20615, 32023, 36155, 98135, 137389, 160115, 224161, 608437, 686945, 1120805, 3042185, 4259059, 21295295]

約数ペア:

[(1, 21295295), (5, 4259059), (7, 3042185), (19, 1120805), (31, 686945), (35, 608437), (95, 224161), (133, 160115), (155, 137389), (217, 98135), (589, 36155), (665, 32023), (1033, 20615), (1085, 19627), (2945, 7231), (4123, 5165)]