20747354

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 34516800

約数和(自身を除く): 13769446

約数列:

[1, 2, 19, 29, 38, 58, 67, 134, 281, 551, 562, 1102, 1273, 1943, 2546, 3886, 5339, 8149, 10678, 16298, 18827, 36917, 37654, 73834, 154831, 309662, 357713, 545983, 715426, 1091966, 10373677, 20747354]

約数ペア:

[(1, 20747354), (2, 10373677), (19, 1091966), (29, 715426), (38, 545983), (58, 357713), (67, 309662), (134, 154831), (281, 73834), (551, 37654), (562, 36917), (1102, 18827), (1273, 16298), (1943, 10678), (2546, 8149), (3886, 5339)]