20381973

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{4663}}^1$

素因数の和:4744

約数の個数: 16

約数和(自身を含む): 28655616

約数和(自身を除く): 8273643

約数列:

[1, 3, 31, 47, 93, 141, 1457, 4371, 4663, 13989, 144553, 219161, 433659, 657483, 6793991, 20381973]

約数ペア:

[(1, 20381973), (3, 6793991), (31, 657483), (47, 433659), (93, 219161), (141, 144553), (1457, 13989), (4371, 4663)]