17171921

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 20291040

約数和(自身を除く): 3119119

約数列:

[1, 13, 17, 43, 139, 169, 221, 559, 731, 1807, 2363, 2873, 5977, 7267, 9503, 23491, 30719, 77701, 101609, 123539, 399347, 1010113, 1320917, 17171921]

約数ペア:

[(1, 17171921), (13, 1320917), (17, 1010113), (43, 399347), (139, 123539), (169, 101609), (221, 77701), (559, 30719), (731, 23491), (1807, 9503), (2363, 7267), (2873, 5977)]