21910041

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 33747840

約数和(自身を除く): 11837799

約数列:

[1, 3, 9, 27, 53, 61, 159, 183, 251, 477, 549, 753, 1431, 1647, 2259, 3233, 6777, 9699, 13303, 15311, 29097, 39909, 45933, 87291, 119727, 137799, 359181, 413397, 811483, 2434449, 7303347, 21910041]

約数ペア:

[(1, 21910041), (3, 7303347), (9, 2434449), (27, 811483), (53, 413397), (61, 359181), (159, 137799), (183, 119727), (251, 87291), (477, 45933), (549, 39909), (753, 29097), (1431, 15311), (1647, 13303), (2259, 9699), (3233, 6777)]