21061424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2389}}^1$

素因数の和:2445

約数の個数: 40

約数和(自身を含む): 44454000

約数和(自身を除く): 23392576

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2389, 4408, 4778, 8816, 9556, 19112, 38224, 45391, 69281, 90782, 138562, 181564, 277124, 363128, 554248, 726256, 1108496, 1316339, 2632678, 5265356, 10530712, 21061424]

約数ペア:

[(1, 21061424), (2, 10530712), (4, 5265356), (8, 2632678), (16, 1316339), (19, 1108496), (29, 726256), (38, 554248), (58, 363128), (76, 277124), (116, 181564), (152, 138562), (232, 90782), (304, 69281), (464, 45391), (551, 38224), (1102, 19112), (2204, 9556), (2389, 8816), (4408, 4778)]