21545580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1193}}^1$

素因数の和:1255

約数の個数: 96

約数和(自身を含む): 70608384

約数和(自身を除く): 49062804

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 1193, 1204, 1290, 1505, 1806, 2386, 2580, 3010, 3579, 3612, 4515, 4772, 5965, 6020, 7158, 8351, 9030, 11930, 14316, 16702, 17895, 18060, 23860, 25053, 33404, 35790, 41755, 50106, 51299, 71580, 83510, 100212, 102598, 125265, 153897, 167020, 205196, 250530, 256495, 307794, 359093, 501060, 512990, 615588, 718186, 769485, 1025980, 1077279, 1436372, 1538970, 1795465, 2154558, 3077940, 3590930, 4309116, 5386395, 7181860, 10772790, 21545580]

約数ペア:

[(1, 21545580), (2, 10772790), (3, 7181860), (4, 5386395), (5, 4309116), (6, 3590930), (7, 3077940), (10, 2154558), (12, 1795465), (14, 1538970), (15, 1436372), (20, 1077279), (21, 1025980), (28, 769485), (30, 718186), (35, 615588), (42, 512990), (43, 501060), (60, 359093), (70, 307794), (84, 256495), (86, 250530), (105, 205196), (129, 167020), (140, 153897), (172, 125265), (210, 102598), (215, 100212), (258, 83510), (301, 71580), (420, 51299), (430, 50106), (516, 41755), (602, 35790), (645, 33404), (860, 25053), (903, 23860), (1193, 18060), (1204, 17895), (1290, 16702), (1505, 14316), (1806, 11930), (2386, 9030), (2580, 8351), (3010, 7158), (3579, 6020), (3612, 5965), (4515, 4772)]