21754680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1124

約数の個数: 64

約数和(自身を含む): 65664000

約数和(自身を除く): 43909320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 199, 398, 597, 796, 911, 995, 1194, 1592, 1822, 1990, 2388, 2733, 2985, 3644, 3980, 4555, 4776, 5466, 5970, 7288, 7960, 9110, 10932, 11940, 13665, 18220, 21864, 23880, 27330, 36440, 54660, 109320, 181289, 362578, 543867, 725156, 906445, 1087734, 1450312, 1812890, 2175468, 2719335, 3625780, 4350936, 5438670, 7251560, 10877340, 21754680]

約数ペア:

[(1, 21754680), (2, 10877340), (3, 7251560), (4, 5438670), (5, 4350936), (6, 3625780), (8, 2719335), (10, 2175468), (12, 1812890), (15, 1450312), (20, 1087734), (24, 906445), (30, 725156), (40, 543867), (60, 362578), (120, 181289), (199, 109320), (398, 54660), (597, 36440), (796, 27330), (911, 23880), (995, 21864), (1194, 18220), (1592, 13665), (1822, 11940), (1990, 10932), (2388, 9110), (2733, 7960), (2985, 7288), (3644, 5970), (3980, 5466), (4555, 4776)]