21590769

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{541}}^1$

素因数の和:848

約数の個数: 16

約数和(自身を含む): 29502144

約数和(自身を除く): 7911375

約数列:

[1, 3, 53, 159, 251, 541, 753, 1623, 13303, 28673, 39909, 86019, 135791, 407373, 7196923, 21590769]

約数ペア:

[(1, 21590769), (3, 7196923), (53, 407373), (159, 135791), (251, 86019), (541, 39909), (753, 28673), (1623, 13303)]