21906690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{56171}}^1$

素因数の和:56194

約数の個数: 32

約数和(自身を含む): 56621376

約数和(自身を除く): 34714686

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 56171, 112342, 168513, 280855, 337026, 561710, 730223, 842565, 1460446, 1685130, 2190669, 3651115, 4381338, 7302230, 10953345, 21906690]

約数ペア:

[(1, 21906690), (2, 10953345), (3, 7302230), (5, 4381338), (6, 3651115), (10, 2190669), (13, 1685130), (15, 1460446), (26, 842565), (30, 730223), (39, 561710), (65, 337026), (78, 280855), (130, 168513), (195, 112342), (390, 56171)]