18970929

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:651

約数の個数: 40

約数和(自身を含む): 31363200

約数和(自身を除く): 12392271

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 599, 621, 1173, 1377, 1797, 1863, 3519, 5391, 10183, 10557, 13777, 16173, 30549, 31671, 41331, 48519, 91647, 123993, 234209, 274941, 371979, 702627, 824823, 1115937, 2107881, 6323643, 18970929]

約数ペア:

[(1, 18970929), (3, 6323643), (9, 2107881), (17, 1115937), (23, 824823), (27, 702627), (51, 371979), (69, 274941), (81, 234209), (153, 123993), (207, 91647), (391, 48519), (459, 41331), (599, 31671), (621, 30549), (1173, 16173), (1377, 13777), (1797, 10557), (1863, 10183), (3519, 5391)]