21848475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 40068864

約数和(自身を除く): 18220389

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 165, 213, 275, 355, 373, 781, 825, 1065, 1119, 1775, 1865, 2343, 3905, 4103, 5325, 5595, 9325, 11715, 12309, 19525, 20515, 26483, 27975, 58575, 61545, 79449, 102575, 132415, 291313, 307725, 397245, 662075, 873939, 1456565, 1986225, 4369695, 7282825, 21848475]

約数ペア:

[(1, 21848475), (3, 7282825), (5, 4369695), (11, 1986225), (15, 1456565), (25, 873939), (33, 662075), (55, 397245), (71, 307725), (75, 291313), (165, 132415), (213, 102575), (275, 79449), (355, 61545), (373, 58575), (781, 27975), (825, 26483), (1065, 20515), (1119, 19525), (1775, 12309), (1865, 11715), (2343, 9325), (3905, 5595), (4103, 5325)]