20210235

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13243845

約数列:

[1, 3, 5, 15, 47, 109, 141, 235, 263, 327, 545, 705, 789, 1315, 1635, 3945, 5123, 12361, 15369, 25615, 28667, 37083, 61805, 76845, 86001, 143335, 185415, 430005, 1347349, 4042047, 6736745, 20210235]

約数ペア:

[(1, 20210235), (3, 6736745), (5, 4042047), (15, 1347349), (47, 430005), (109, 185415), (141, 143335), (235, 86001), (263, 76845), (327, 61805), (545, 37083), (705, 28667), (789, 25615), (1315, 15369), (1635, 12361), (3945, 5123)]