18920745

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{24733}}^1$

素因数の和:24761

約数の個数: 24

約数和(自身を含む): 34726536

約数和(自身を除く): 15805791

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 24733, 74199, 123665, 222597, 370995, 420461, 1112985, 1261383, 2102305, 3784149, 6306915, 18920745]

約数ペア:

[(1, 18920745), (3, 6306915), (5, 3784149), (9, 2102305), (15, 1261383), (17, 1112985), (45, 420461), (51, 370995), (85, 222597), (153, 123665), (255, 74199), (765, 24733)]