19998652

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{619}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 36091440

約数和(自身を除く): 16092788

約数列:

[1, 2, 4, 41, 82, 164, 197, 394, 619, 788, 1238, 2476, 8077, 16154, 25379, 32308, 50758, 101516, 121943, 243886, 487772, 4999663, 9999326, 19998652]

約数ペア:

[(1, 19998652), (2, 9999326), (4, 4999663), (41, 487772), (82, 243886), (164, 121943), (197, 101516), (394, 50758), (619, 32308), (788, 25379), (1238, 16154), (2476, 8077)]