20123432553

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{541}}^1\times {\mathrm{1847}}^1$

素因数の和:2542

約数の個数: 48

約数和(自身を含む): 31514845824

約数和(自身を除く): 11391413271

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 541, 959, 1623, 1847, 2877, 3787, 5541, 6713, 11361, 12929, 20139, 26509, 38787, 74117, 79527, 90503, 222351, 253039, 271509, 518819, 759117, 999227, 1556457, 1771273, 2997681, 3631733, 5313819, 6994589, 10895199, 12398911, 20983767, 37196733, 48962123, 136894099, 146886369, 410682297, 958258693, 2874776079, 6707810851, 20123432553]

約数ペア:

[(1, 20123432553), (3, 6707810851), (7, 2874776079), (21, 958258693), (49, 410682297), (137, 146886369), (147, 136894099), (411, 48962123), (541, 37196733), (959, 20983767), (1623, 12398911), (1847, 10895199), (2877, 6994589), (3787, 5313819), (5541, 3631733), (6713, 2997681), (11361, 1771273), (12929, 1556457), (20139, 999227), (26509, 759117), (38787, 518819), (74117, 271509), (79527, 253039), (90503, 222351)]