21178101

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 34007040

約数和(自身を除く): 12828939

約数列:

[1, 3, 7, 21, 23, 69, 161, 163, 269, 483, 489, 807, 1141, 1883, 3423, 3749, 5649, 6187, 11247, 18561, 26243, 43309, 43847, 78729, 129927, 131541, 306929, 920787, 1008481, 3025443, 7059367, 21178101]

約数ペア:

[(1, 21178101), (3, 7059367), (7, 3025443), (21, 1008481), (23, 920787), (69, 306929), (161, 131541), (163, 129927), (269, 78729), (483, 43847), (489, 43309), (807, 26243), (1141, 18561), (1883, 11247), (3423, 6187), (3749, 5649)]