20613645

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 38892672

約数和(自身を除く): 18279027

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 167, 195, 211, 501, 585, 633, 835, 1055, 1503, 1899, 2171, 2505, 2743, 3165, 6513, 7515, 8229, 9495, 10855, 13715, 19539, 24687, 32565, 35237, 41145, 97695, 105711, 123435, 176185, 317133, 458081, 528555, 1374243, 1585665, 2290405, 4122729, 6871215, 20613645]

約数ペア:

[(1, 20613645), (3, 6871215), (5, 4122729), (9, 2290405), (13, 1585665), (15, 1374243), (39, 528555), (45, 458081), (65, 317133), (117, 176185), (167, 123435), (195, 105711), (211, 97695), (501, 41145), (585, 35237), (633, 32565), (835, 24687), (1055, 19539), (1503, 13715), (1899, 10855), (2171, 9495), (2505, 8229), (2743, 7515), (3165, 6513)]