20865104

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100313}}^1$

素因数の和:100334

約数の個数: 20

約数和(自身を含む): 43536276

約数和(自身を除く): 22671172

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100313, 200626, 401252, 802504, 1304069, 1605008, 2608138, 5216276, 10432552, 20865104]

約数ペア:

[(1, 20865104), (2, 10432552), (4, 5216276), (8, 2608138), (13, 1605008), (16, 1304069), (26, 802504), (52, 401252), (104, 200626), (208, 100313)]