21869589

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{929}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 13842411

約数列:

[1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 929, 1121, 1239, 2787, 3363, 6503, 7847, 17651, 19509, 23541, 52953, 54811, 123557, 164433, 370671, 383677, 1041409, 1151031, 3124227, 7289863, 21869589]

約数ペア:

[(1, 21869589), (3, 7289863), (7, 3124227), (19, 1151031), (21, 1041409), (57, 383677), (59, 370671), (133, 164433), (177, 123557), (399, 54811), (413, 52953), (929, 23541), (1121, 19509), (1239, 17651), (2787, 7847), (3363, 6503)]