18193995

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1399}}^1$

素因数の和:1444

約数の個数: 36

約数和(自身を含む): 33524400

約数和(自身を除く): 15330405

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 1399, 1445, 2601, 4197, 4335, 6995, 12591, 13005, 20985, 23783, 62955, 71349, 118915, 214047, 356745, 404311, 1070235, 1212933, 2021555, 3638799, 6064665, 18193995]

約数ペア:

[(1, 18193995), (3, 6064665), (5, 3638799), (9, 2021555), (15, 1212933), (17, 1070235), (45, 404311), (51, 356745), (85, 214047), (153, 118915), (255, 71349), (289, 62955), (765, 23783), (867, 20985), (1399, 13005), (1445, 12591), (2601, 6995), (4197, 4335)]