199980501

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1\times {\mathrm{509}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 311973120

約数和(自身を除く): 111992619

約数列:

[1, 3, 7, 21, 53, 159, 353, 371, 509, 1059, 1113, 1527, 2471, 3563, 7413, 10689, 18709, 26977, 56127, 80931, 130963, 179677, 188839, 392889, 539031, 566517, 1257739, 3773217, 9522881, 28568643, 66660167, 199980501]

約数ペア:

[(1, 199980501), (3, 66660167), (7, 28568643), (21, 9522881), (53, 3773217), (159, 1257739), (353, 566517), (371, 539031), (509, 392889), (1059, 188839), (1113, 179677), (1527, 130963), (2471, 80931), (3563, 56127), (7413, 26977), (10689, 18709)]