21466431

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2212

約数の個数: 32

約数和(自身を含む): 37048320

約数和(自身を除く): 15581889

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 2143, 3339, 6429, 10017, 15001, 19287, 45003, 57861, 113579, 135009, 340737, 405027, 795053, 1022211, 2385159, 3066633, 7155477, 21466431]

約数ペア:

[(1, 21466431), (3, 7155477), (7, 3066633), (9, 2385159), (21, 1022211), (27, 795053), (53, 405027), (63, 340737), (159, 135009), (189, 113579), (371, 57861), (477, 45003), (1113, 19287), (1431, 15001), (2143, 10017), (3339, 6429)]