21967515

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25693}}^1$

素因数の和:25723

約数の個数: 24

約数和(自身を含む): 40082640

約数和(自身を除く): 18115125

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 25693, 77079, 128465, 231237, 385395, 488167, 1156185, 1464501, 2440835, 4393503, 7322505, 21967515]

約数ペア:

[(1, 21967515), (3, 7322505), (5, 4393503), (9, 2440835), (15, 1464501), (19, 1156185), (45, 488167), (57, 385395), (95, 231237), (171, 128465), (285, 77079), (855, 25693)]