21933440

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:859

約数の個数: 64

約数和(自身を含む): 53721360

約数和(自身を除く): 31787920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 797, 860, 1376, 1594, 1720, 2752, 3188, 3440, 3985, 5504, 6376, 6880, 7970, 12752, 13760, 15940, 25504, 27520, 31880, 34271, 51008, 63760, 68542, 102016, 127520, 137084, 171355, 255040, 274168, 342710, 510080, 548336, 685420, 1096672, 1370840, 2193344, 2741680, 4386688, 5483360, 10966720, 21933440]

約数ペア:

[(1, 21933440), (2, 10966720), (4, 5483360), (5, 4386688), (8, 2741680), (10, 2193344), (16, 1370840), (20, 1096672), (32, 685420), (40, 548336), (43, 510080), (64, 342710), (80, 274168), (86, 255040), (128, 171355), (160, 137084), (172, 127520), (215, 102016), (320, 68542), (344, 63760), (430, 51008), (640, 34271), (688, 31880), (797, 27520), (860, 25504), (1376, 15940), (1594, 13760), (1720, 12752), (2752, 7970), (3188, 6880), (3440, 6376), (3985, 5504)]