20902003199

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{139709}}^1$

素因数の和:139823

約数の個数: 32

約数和(自身を含む): 27360806400

約数和(自身を除く): 6458803201

約数列:

[1, 7, 11, 29, 67, 77, 203, 319, 469, 737, 1943, 2233, 5159, 13601, 21373, 139709, 149611, 977963, 1536799, 4051561, 9360503, 10757593, 28360927, 44567171, 65523521, 102965533, 271454587, 311970197, 720758731, 1900182109, 2986000457, 20902003199]

約数ペア:

[(1, 20902003199), (7, 2986000457), (11, 1900182109), (29, 720758731), (67, 311970197), (77, 271454587), (203, 102965533), (319, 65523521), (469, 44567171), (737, 28360927), (1943, 10757593), (2233, 9360503), (5159, 4051561), (13601, 1536799), (21373, 977963), (139709, 149611)]