19139943

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 28195776

約数和(自身を除く): 9055833

約数列:

[1, 3, 17, 51, 53, 73, 97, 159, 219, 291, 901, 1241, 1649, 2703, 3723, 3869, 4947, 5141, 7081, 11607, 15423, 21243, 65773, 87397, 120377, 197319, 262191, 361131, 375293, 1125879, 6379981, 19139943]

約数ペア:

[(1, 19139943), (3, 6379981), (17, 1125879), (51, 375293), (53, 361131), (73, 262191), (97, 197319), (159, 120377), (219, 87397), (291, 65773), (901, 21243), (1241, 15423), (1649, 11607), (2703, 7081), (3723, 5141), (3869, 4947)]