21963915

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28711}}^1$

素因数の和:28739

約数の個数: 24

約数和(自身を含む): 40311648

約数和(自身を除く): 18347733

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28711, 86133, 143555, 258399, 430665, 488087, 1291995, 1464261, 2440435, 4392783, 7321305, 21963915]

約数ペア:

[(1, 21963915), (3, 7321305), (5, 4392783), (9, 2440435), (15, 1464261), (17, 1291995), (45, 488087), (51, 430665), (85, 258399), (153, 143555), (255, 86133), (765, 28711)]