21099400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2153}}^1$

素因数の和:2183

約数の個数: 72

約数和(自身を含む): 57091770

約数和(自身を除く): 35992370

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2153, 2450, 4306, 4900, 8612, 9800, 10765, 15071, 17224, 21530, 30142, 43060, 53825, 60284, 75355, 86120, 105497, 107650, 120568, 150710, 210994, 215300, 301420, 376775, 421988, 430600, 527485, 602840, 753550, 843976, 1054970, 1507100, 2109940, 2637425, 3014200, 4219880, 5274850, 10549700, 21099400]

約数ペア:

[(1, 21099400), (2, 10549700), (4, 5274850), (5, 4219880), (7, 3014200), (8, 2637425), (10, 2109940), (14, 1507100), (20, 1054970), (25, 843976), (28, 753550), (35, 602840), (40, 527485), (49, 430600), (50, 421988), (56, 376775), (70, 301420), (98, 215300), (100, 210994), (140, 150710), (175, 120568), (196, 107650), (200, 105497), (245, 86120), (280, 75355), (350, 60284), (392, 53825), (490, 43060), (700, 30142), (980, 21530), (1225, 17224), (1400, 15071), (1960, 10765), (2153, 9800), (2450, 8612), (4306, 4900)]