19887216

素因数分解:

$2^4\times 3^1\times {\mathrm{409}}^1\times {\mathrm{1013}}^1$

素因数の和:1433

約数の個数: 40

約数和(自身を含む): 51551760

約数和(自身を除く): 31664544

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 409, 818, 1013, 1227, 1636, 2026, 2454, 3039, 3272, 4052, 4908, 6078, 6544, 8104, 9816, 12156, 16208, 19632, 24312, 48624, 414317, 828634, 1242951, 1657268, 2485902, 3314536, 4971804, 6629072, 9943608, 19887216]

約数ペア:

[(1, 19887216), (2, 9943608), (3, 6629072), (4, 4971804), (6, 3314536), (8, 2485902), (12, 1657268), (16, 1242951), (24, 828634), (48, 414317), (409, 48624), (818, 24312), (1013, 19632), (1227, 16208), (1636, 12156), (2026, 9816), (2454, 8104), (3039, 6544), (3272, 6078), (4052, 4908)]