20219895

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7883}}^1$

素因数の和:7916

約数の個数: 32

約数和(自身を含む): 37843200

約数和(自身を除く): 17623305

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 7883, 23649, 39415, 70947, 118245, 149777, 212841, 354735, 449331, 748885, 1064205, 1347993, 2246655, 4043979, 6739965, 20219895]

約数ペア:

[(1, 20219895), (3, 6739965), (5, 4043979), (9, 2246655), (15, 1347993), (19, 1064205), (27, 748885), (45, 449331), (57, 354735), (95, 212841), (135, 149777), (171, 118245), (285, 70947), (513, 39415), (855, 23649), (2565, 7883)]