215361909

素因数分解:

$3^6\times 7^2\times {\mathrm{6029}}^1$

素因数の和:6061

約数の個数: 42

約数和(自身を含む): 375675030

約数和(自身を除く): 160313121

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1701, 3969, 5103, 6029, 11907, 18087, 35721, 42203, 54261, 126609, 162783, 295421, 379827, 488349, 886263, 1139481, 1465047, 2658789, 3418443, 4395141, 7976367, 10255329, 23929101, 30765987, 71787303, 215361909]

約数ペア:

[(1, 215361909), (3, 71787303), (7, 30765987), (9, 23929101), (21, 10255329), (27, 7976367), (49, 4395141), (63, 3418443), (81, 2658789), (147, 1465047), (189, 1139481), (243, 886263), (441, 488349), (567, 379827), (729, 295421), (1323, 162783), (1701, 126609), (3969, 54261), (5103, 42203), (6029, 35721), (11907, 18087)]