21512916

素因数分解:

$2^2\times 3^2\times {\mathrm{597581}}^1$

素因数の和:597591

約数の個数: 18

約数和(自身を含む): 54379962

約数和(自身を除く): 32867046

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 597581, 1195162, 1792743, 2390324, 3585486, 5378229, 7170972, 10756458, 21512916]

約数ペア:

[(1, 21512916), (2, 10756458), (3, 7170972), (4, 5378229), (6, 3585486), (9, 2390324), (12, 1792743), (18, 1195162), (36, 597581)]