21591680

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3067}}^1$

素因数の和:3097

約数の個数: 64

約数和(自身を含む): 56328480

約数和(自身を除く): 34736800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3067, 3520, 6134, 7040, 12268, 15335, 24536, 30670, 33737, 49072, 61340, 67474, 98144, 122680, 134948, 168685, 196288, 245360, 269896, 337370, 392576, 490720, 539792, 674740, 981440, 1079584, 1349480, 1962880, 2159168, 2698960, 4318336, 5397920, 10795840, 21591680]

約数ペア:

[(1, 21591680), (2, 10795840), (4, 5397920), (5, 4318336), (8, 2698960), (10, 2159168), (11, 1962880), (16, 1349480), (20, 1079584), (22, 981440), (32, 674740), (40, 539792), (44, 490720), (55, 392576), (64, 337370), (80, 269896), (88, 245360), (110, 196288), (128, 168685), (160, 134948), (176, 122680), (220, 98144), (320, 67474), (352, 61340), (440, 49072), (640, 33737), (704, 30670), (880, 24536), (1408, 15335), (1760, 12268), (3067, 7040), (3520, 6134)]