20551713

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{907}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 34169856

約数和(自身を除く): 13618143

約数列:

[1, 3, 7, 13, 21, 39, 83, 91, 249, 273, 581, 907, 1079, 1743, 2721, 3237, 6349, 7553, 11791, 19047, 22659, 35373, 75281, 82537, 225843, 247611, 526967, 978653, 1580901, 2935959, 6850571, 20551713]

約数ペア:

[(1, 20551713), (3, 6850571), (7, 2935959), (13, 1580901), (21, 978653), (39, 526967), (83, 247611), (91, 225843), (249, 82537), (273, 75281), (581, 35373), (907, 22659), (1079, 19047), (1743, 11791), (2721, 7553), (3237, 6349)]