21154635

素因数分解:

$3^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{449}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 37800000

約数和(自身を除く): 16645365

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 349, 449, 1047, 1347, 1745, 2245, 3141, 4041, 5235, 6735, 9423, 12123, 15705, 20205, 47115, 60615, 156701, 470103, 783505, 1410309, 2350515, 4230927, 7051545, 21154635]

約数ペア:

[(1, 21154635), (3, 7051545), (5, 4230927), (9, 2350515), (15, 1410309), (27, 783505), (45, 470103), (135, 156701), (349, 60615), (449, 47115), (1047, 20205), (1347, 15705), (1745, 12123), (2245, 9423), (3141, 6735), (4041, 5235)]