20384955

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26647}}^1$

素因数の和:26675

約数の個数: 24

約数和(自身を含む): 37413792

約数和(自身を除く): 17028837

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26647, 79941, 133235, 239823, 399705, 452999, 1199115, 1358997, 2264995, 4076991, 6794985, 20384955]

約数ペア:

[(1, 20384955), (3, 6794985), (5, 4076991), (9, 2264995), (15, 1358997), (17, 1199115), (45, 452999), (51, 399705), (85, 239823), (153, 133235), (255, 79941), (765, 26647)]