21129748

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{9587}}^1$

素因数の和:9639

約数の個数: 24

約数和(自身を含む): 40269600

約数和(自身を除く): 19139852

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 551, 1102, 2204, 9587, 19174, 38348, 182153, 278023, 364306, 556046, 728612, 1112092, 5282437, 10564874, 21129748]

約数ペア:

[(1, 21129748), (2, 10564874), (4, 5282437), (19, 1112092), (29, 728612), (38, 556046), (58, 364306), (76, 278023), (116, 182153), (551, 38348), (1102, 19174), (2204, 9587)]