21602280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25717}}^1$

素因数の和:25738

約数の個数: 64

約数和(自身を含む): 74067840

約数和(自身を除く): 52465560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25717, 51434, 77151, 102868, 128585, 154302, 180019, 205736, 257170, 308604, 360038, 385755, 514340, 540057, 617208, 720076, 771510, 900095, 1028680, 1080114, 1440152, 1543020, 1800190, 2160228, 2700285, 3086040, 3600380, 4320456, 5400570, 7200760, 10801140, 21602280]

約数ペア:

[(1, 21602280), (2, 10801140), (3, 7200760), (4, 5400570), (5, 4320456), (6, 3600380), (7, 3086040), (8, 2700285), (10, 2160228), (12, 1800190), (14, 1543020), (15, 1440152), (20, 1080114), (21, 1028680), (24, 900095), (28, 771510), (30, 720076), (35, 617208), (40, 540057), (42, 514340), (56, 385755), (60, 360038), (70, 308604), (84, 257170), (105, 205736), (120, 180019), (140, 154302), (168, 128585), (210, 102868), (280, 77151), (420, 51434), (840, 25717)]