21083536

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77513}}^1$

素因数の和:77538

約数の個数: 20

約数和(自身を含む): 43252812

約数和(自身を除く): 22169276

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77513, 155026, 310052, 620104, 1240208, 1317721, 2635442, 5270884, 10541768, 21083536]

約数ペア:

[(1, 21083536), (2, 10541768), (4, 5270884), (8, 2635442), (16, 1317721), (17, 1240208), (34, 620104), (68, 310052), (136, 155026), (272, 77513)]