21335055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3331}}^1$

素因数の和:3407

約数の個数: 32

約数和(自身を含む): 39664128

約数和(自身を除く): 18329073

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3331, 6405, 9993, 16655, 23317, 49965, 69951, 116585, 203191, 349755, 609573, 1015955, 1422337, 3047865, 4267011, 7111685, 21335055]

約数ペア:

[(1, 21335055), (3, 7111685), (5, 4267011), (7, 3047865), (15, 1422337), (21, 1015955), (35, 609573), (61, 349755), (105, 203191), (183, 116585), (305, 69951), (427, 49965), (915, 23317), (1281, 16655), (2135, 9993), (3331, 6405)]