21479600

素因数分解:

$2^4\times 5^2\times {\mathrm{53699}}^1$

素因数の和:53717

約数の個数: 30

約数和(自身を含む): 51605700

約数和(自身を除く): 30126100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53699, 107398, 214796, 268495, 429592, 536990, 859184, 1073980, 1342475, 2147960, 2684950, 4295920, 5369900, 10739800, 21479600]

約数ペア:

[(1, 21479600), (2, 10739800), (4, 5369900), (5, 4295920), (8, 2684950), (10, 2147960), (16, 1342475), (20, 1073980), (25, 859184), (40, 536990), (50, 429592), (80, 268495), (100, 214796), (200, 107398), (400, 53699)]