21689055

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6101}}^1$

素因数の和:6191

約数の個数: 24

約数和(自身を含む): 38076480

約数和(自身を除く): 16387425

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 6101, 18303, 30505, 54909, 91515, 274545, 481979, 1445937, 2409895, 4337811, 7229685, 21689055]

約数ペア:

[(1, 21689055), (3, 7229685), (5, 4337811), (9, 2409895), (15, 1445937), (45, 481979), (79, 274545), (237, 91515), (395, 54909), (711, 30505), (1185, 18303), (3555, 6101)]