21211428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{10979}}^1$

素因数の和:11016

約数の個数: 48

約数和(自身を含む): 59028480

約数和(自身を除く): 37817052

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 138, 161, 276, 322, 483, 644, 966, 1932, 10979, 21958, 32937, 43916, 65874, 76853, 131748, 153706, 230559, 252517, 307412, 461118, 505034, 757551, 922236, 1010068, 1515102, 1767619, 3030204, 3535238, 5302857, 7070476, 10605714, 21211428]

約数ペア:

[(1, 21211428), (2, 10605714), (3, 7070476), (4, 5302857), (6, 3535238), (7, 3030204), (12, 1767619), (14, 1515102), (21, 1010068), (23, 922236), (28, 757551), (42, 505034), (46, 461118), (69, 307412), (84, 252517), (92, 230559), (138, 153706), (161, 131748), (276, 76853), (322, 65874), (483, 43916), (644, 32937), (966, 21958), (1932, 10979)]