20870768

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19469}}^1$

素因数の和:19544

約数の個数: 20

約数和(自身を含む): 41042760

約数和(自身を除く): 20171992

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19469, 38938, 77876, 155752, 311504, 1304423, 2608846, 5217692, 10435384, 20870768]

約数ペア:

[(1, 20870768), (2, 10435384), (4, 5217692), (8, 2608846), (16, 1304423), (67, 311504), (134, 155752), (268, 77876), (536, 38938), (1072, 19469)]