21263055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4157}}^1$

素因数の和:4207

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 17057073

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4157, 5115, 12471, 20785, 45727, 62355, 128867, 137181, 228635, 386601, 644335, 685905, 1417537, 1933005, 4252611, 7087685, 21263055]

約数ペア:

[(1, 21263055), (3, 7087685), (5, 4252611), (11, 1933005), (15, 1417537), (31, 685905), (33, 644335), (55, 386601), (93, 228635), (155, 137181), (165, 128867), (341, 62355), (465, 45727), (1023, 20785), (1705, 12471), (4157, 5115)]