20216353521

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2001421}}^1$

素因数の和:2001481

約数の個数: 32

約数和(自身を含む): 34072208128

約数和(自身を除く): 13855854607

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 259, 273, 481, 777, 1443, 3367, 10101, 2001421, 6004263, 14009947, 26018473, 42029841, 74052577, 78055419, 182129311, 222157731, 518368039, 546387933, 962683501, 1555104117, 2888050503, 6738784507, 20216353521]

約数ペア:

[(1, 20216353521), (3, 6738784507), (7, 2888050503), (13, 1555104117), (21, 962683501), (37, 546387933), (39, 518368039), (91, 222157731), (111, 182129311), (259, 78055419), (273, 74052577), (481, 42029841), (777, 26018473), (1443, 14009947), (3367, 6004263), (10101, 2001421)]