20180643847

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{77351}}^1$

素因数の和:77479

約数の個数: 32

約数和(自身を含む): 25782349824

約数和(自身を除く): 5601705977

約数列:

[1, 7, 13, 47, 61, 91, 329, 427, 611, 793, 2867, 4277, 5551, 20069, 37271, 77351, 260897, 541457, 1005563, 3635497, 4718411, 7038941, 25448479, 33028877, 47261461, 61339343, 221765317, 330830227, 429375401, 1552357219, 2882949121, 20180643847]

約数ペア:

[(1, 20180643847), (7, 2882949121), (13, 1552357219), (47, 429375401), (61, 330830227), (91, 221765317), (329, 61339343), (427, 47261461), (611, 33028877), (793, 25448479), (2867, 7038941), (4277, 4718411), (5551, 3635497), (20069, 1005563), (37271, 541457), (77351, 260897)]