18973717

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 23518656

約数和(自身を除く): 4544939

約数列:

[1, 7, 17, 83, 113, 119, 289, 581, 791, 1411, 1921, 2023, 9379, 9877, 13447, 23987, 32657, 65653, 159443, 167909, 228599, 1116101, 2710531, 18973717]

約数ペア:

[(1, 18973717), (7, 2710531), (17, 1116101), (83, 228599), (113, 167909), (119, 159443), (289, 65653), (581, 32657), (791, 23987), (1411, 13447), (1921, 9877), (2023, 9379)]