21420984

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{967}}^1$

素因数の和:1060

約数の個数: 64

約数和(自身を含む): 58544640

約数和(自身を除く): 37123656

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 71, 78, 104, 142, 156, 213, 284, 312, 426, 568, 852, 923, 967, 1704, 1846, 1934, 2769, 2901, 3692, 3868, 5538, 5802, 7384, 7736, 11076, 11604, 12571, 22152, 23208, 25142, 37713, 50284, 68657, 75426, 100568, 137314, 150852, 205971, 274628, 301704, 411942, 549256, 823884, 892541, 1647768, 1785082, 2677623, 3570164, 5355246, 7140328, 10710492, 21420984]

約数ペア:

[(1, 21420984), (2, 10710492), (3, 7140328), (4, 5355246), (6, 3570164), (8, 2677623), (12, 1785082), (13, 1647768), (24, 892541), (26, 823884), (39, 549256), (52, 411942), (71, 301704), (78, 274628), (104, 205971), (142, 150852), (156, 137314), (213, 100568), (284, 75426), (312, 68657), (426, 50284), (568, 37713), (852, 25142), (923, 23208), (967, 22152), (1704, 12571), (1846, 11604), (1934, 11076), (2769, 7736), (2901, 7384), (3692, 5802), (3868, 5538)]