21154208

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12473}}^1$

素因数の和:12536

約数の個数: 24

約数和(自身を含む): 42436548

約数和(自身を除く): 21282340

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12473, 24946, 49892, 99784, 199568, 399136, 661069, 1322138, 2644276, 5288552, 10577104, 21154208]

約数ペア:

[(1, 21154208), (2, 10577104), (4, 5288552), (8, 2644276), (16, 1322138), (32, 661069), (53, 399136), (106, 199568), (212, 99784), (424, 49892), (848, 24946), (1696, 12473)]