21304321921

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{3407}}^1\times {\mathrm{4691}}^1$

素因数の和:8172

約数の個数: 16

約数和(自身を含む): 22514393088

約数和(自身を除く): 1210071167

約数列:

[1, 31, 43, 1333, 3407, 4691, 105617, 145421, 146501, 201713, 4541531, 6253103, 15982237, 495449347, 687236191, 21304321921]

約数ペア:

[(1, 21304321921), (31, 687236191), (43, 495449347), (1333, 15982237), (3407, 6253103), (4691, 4541531), (105617, 201713), (145421, 146501)]