21989835

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69809}}^1$

素因数の和:69827

約数の個数: 24

約数和(自身を含む): 43561440

約数和(自身を除く): 21571605

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69809, 209427, 349045, 488663, 628281, 1047135, 1465989, 2443315, 3141405, 4397967, 7329945, 21989835]

約数ペア:

[(1, 21989835), (3, 7329945), (5, 4397967), (7, 3141405), (9, 2443315), (15, 1465989), (21, 1047135), (35, 628281), (45, 488663), (63, 349045), (105, 209427), (315, 69809)]