21907545

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4283}}^1$

素因数の和:4333

約数の個数: 32

約数和(自身を含む): 39481344

約数和(自身を除く): 17573799

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4283, 5115, 12849, 21415, 47113, 64245, 132773, 141339, 235565, 398319, 663865, 706695, 1460503, 1991595, 4381509, 7302515, 21907545]

約数ペア:

[(1, 21907545), (3, 7302515), (5, 4381509), (11, 1991595), (15, 1460503), (31, 706695), (33, 663865), (55, 398319), (93, 235565), (155, 141339), (165, 132773), (341, 64245), (465, 47113), (1023, 21415), (1705, 12849), (4283, 5115)]