21367989

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1811}}^1$

素因数の和:1862

約数の個数: 32

約数和(自身を含む): 34790400

約数和(自身を除く): 13422411

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 171, 207, 437, 513, 621, 1311, 1811, 3933, 5433, 11799, 16299, 34409, 41653, 48897, 103227, 124959, 309681, 374877, 791407, 929043, 1124631, 2374221, 7122663, 21367989]

約数ペア:

[(1, 21367989), (3, 7122663), (9, 2374221), (19, 1124631), (23, 929043), (27, 791407), (57, 374877), (69, 309681), (171, 124959), (207, 103227), (437, 48897), (513, 41653), (621, 34409), (1311, 16299), (1811, 11799), (3933, 5433)]