21572828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{761}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 39898320

約数和(自身を除く): 18325492

約数列:

[1, 2, 4, 19, 38, 76, 373, 746, 761, 1492, 1522, 3044, 7087, 14174, 14459, 28348, 28918, 57836, 283853, 567706, 1135412, 5393207, 10786414, 21572828]

約数ペア:

[(1, 21572828), (2, 10786414), (4, 5393207), (19, 1135412), (38, 567706), (76, 283853), (373, 57836), (746, 28918), (761, 28348), (1492, 14459), (1522, 14174), (3044, 7087)]