21372320

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{599}}^1$

素因数の和:837

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29430880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 599, 892, 1115, 1198, 1784, 2230, 2396, 2995, 3568, 4460, 4792, 5990, 7136, 8920, 9584, 11980, 17840, 19168, 23960, 35680, 47920, 95840, 133577, 267154, 534308, 667885, 1068616, 1335770, 2137232, 2671540, 4274464, 5343080, 10686160, 21372320]

約数ペア:

[(1, 21372320), (2, 10686160), (4, 5343080), (5, 4274464), (8, 2671540), (10, 2137232), (16, 1335770), (20, 1068616), (32, 667885), (40, 534308), (80, 267154), (160, 133577), (223, 95840), (446, 47920), (599, 35680), (892, 23960), (1115, 19168), (1198, 17840), (1784, 11980), (2230, 9584), (2396, 8920), (2995, 7136), (3568, 5990), (4460, 4792)]