20104221

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{3449}}^1$

素因数の和:3548

約数の個数: 16

約数和(自身を含む): 28152000

約数和(自身を除く): 8047779

約数列:

[1, 3, 29, 67, 87, 201, 1943, 3449, 5829, 10347, 100021, 231083, 300063, 693249, 6701407, 20104221]

約数ペア:

[(1, 20104221), (3, 6701407), (29, 693249), (67, 300063), (87, 231083), (201, 100021), (1943, 10347), (3449, 5829)]