21731715

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6113}}^1$

素因数の和:6203

約数の個数: 24

約数和(自身を含む): 38151360

約数和(自身を除く): 16419645

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 6113, 18339, 30565, 55017, 91695, 275085, 482927, 1448781, 2414635, 4346343, 7243905, 21731715]

約数ペア:

[(1, 21731715), (3, 7243905), (5, 4346343), (9, 2414635), (15, 1448781), (45, 482927), (79, 275085), (237, 91695), (395, 55017), (711, 30565), (1185, 18339), (3555, 6113)]