21002880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10939}}^1$

素因数の和:10961

約数の個数: 64

約数和(自身を含む): 66952800

約数和(自身を除く): 45949920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10939, 21878, 32817, 43756, 54695, 65634, 87512, 109390, 131268, 164085, 175024, 218780, 262536, 328170, 350048, 437560, 525072, 656340, 700096, 875120, 1050144, 1312680, 1400192, 1750240, 2100288, 2625360, 3500480, 4200576, 5250720, 7000960, 10501440, 21002880]

約数ペア:

[(1, 21002880), (2, 10501440), (3, 7000960), (4, 5250720), (5, 4200576), (6, 3500480), (8, 2625360), (10, 2100288), (12, 1750240), (15, 1400192), (16, 1312680), (20, 1050144), (24, 875120), (30, 700096), (32, 656340), (40, 525072), (48, 437560), (60, 350048), (64, 328170), (80, 262536), (96, 218780), (120, 175024), (128, 164085), (160, 131268), (192, 109390), (240, 87512), (320, 65634), (384, 54695), (480, 43756), (640, 32817), (960, 21878), (1920, 10939)]