18927965

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3359}}^1$

素因数の和:3401

約数の個数: 24

約数和(自身を含む): 27578880

約数和(自身を除く): 8650915

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 3359, 5635, 16795, 23513, 77257, 117565, 164591, 386285, 540799, 822955, 2703995, 3785593, 18927965]

約数ペア:

[(1, 18927965), (5, 3785593), (7, 2703995), (23, 822955), (35, 540799), (49, 386285), (115, 164591), (161, 117565), (245, 77257), (805, 23513), (1127, 16795), (3359, 5635)]