21063536

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101267}}^1$

素因数の和:101288

約数の個数: 20

約数和(自身を含む): 43950312

約数和(自身を除く): 22886776

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101267, 202534, 405068, 810136, 1316471, 1620272, 2632942, 5265884, 10531768, 21063536]

約数ペア:

[(1, 21063536), (2, 10531768), (4, 5265884), (8, 2632942), (13, 1620272), (16, 1316471), (26, 810136), (52, 405068), (104, 202534), (208, 101267)]