21569955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4217}}^1$

素因数の和:4267

約数の個数: 32

約数和(自身を含む): 38873088

約数和(自身を除く): 17303133

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4217, 5115, 12651, 21085, 46387, 63255, 130727, 139161, 231935, 392181, 653635, 695805, 1437997, 1960905, 4313991, 7189985, 21569955]

約数ペア:

[(1, 21569955), (3, 7189985), (5, 4313991), (11, 1960905), (15, 1437997), (31, 695805), (33, 653635), (55, 392181), (93, 231935), (155, 139161), (165, 130727), (341, 63255), (465, 46387), (1023, 21085), (1705, 12651), (4217, 5115)]