20013213

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 31219200

約数和(自身を除く): 11205987

約数列:

[1, 3, 11, 19, 33, 57, 59, 177, 209, 541, 627, 649, 1121, 1623, 1947, 3363, 5951, 10279, 12331, 17853, 30837, 31919, 36993, 95757, 113069, 339207, 351109, 606461, 1053327, 1819383, 6671071, 20013213]

約数ペア:

[(1, 20013213), (3, 6671071), (11, 1819383), (19, 1053327), (33, 606461), (57, 351109), (59, 339207), (177, 113069), (209, 95757), (541, 36993), (627, 31919), (649, 30837), (1121, 17853), (1623, 12331), (1947, 10279), (3363, 5951)]