21990675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{41887}}^1$

素因数の和:41907

約数の個数: 24

約数和(自身を含む): 41552896

約数和(自身を除く): 19562221

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 41887, 125661, 209435, 293209, 628305, 879627, 1047175, 1466045, 3141525, 4398135, 7330225, 21990675]

約数ペア:

[(1, 21990675), (3, 7330225), (5, 4398135), (7, 3141525), (15, 1466045), (21, 1047175), (25, 879627), (35, 628305), (75, 293209), (105, 209435), (175, 125661), (525, 41887)]