19355865

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 32006016

約数和(自身を除く): 12650151

約数列:

[1, 3, 5, 15, 53, 97, 159, 251, 265, 291, 485, 753, 795, 1255, 1455, 3765, 5141, 13303, 15423, 24347, 25705, 39909, 66515, 73041, 77115, 121735, 199545, 365205, 1290391, 3871173, 6451955, 19355865]

約数ペア:

[(1, 19355865), (3, 6451955), (5, 3871173), (15, 1290391), (53, 365205), (97, 199545), (159, 121735), (251, 77115), (265, 73041), (291, 66515), (485, 39909), (753, 25705), (795, 24347), (1255, 15423), (1455, 13303), (3765, 5141)]