161213955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{80809}}^1$

素因数の和:80843

約数の個数: 32

約数和(自身を含む): 310310400

約数和(自身を除く): 149096445

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 80809, 242427, 404045, 565663, 1212135, 1535371, 1696989, 2828315, 4606113, 7676855, 8484945, 10747597, 23030565, 32242791, 53737985, 161213955]

約数ペア:

[(1, 161213955), (3, 53737985), (5, 32242791), (7, 23030565), (15, 10747597), (19, 8484945), (21, 7676855), (35, 4606113), (57, 2828315), (95, 1696989), (105, 1535371), (133, 1212135), (285, 565663), (399, 404045), (665, 242427), (1995, 80809)]