81971946

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5861}}^1$

素因数の和:5916

約数の個数: 64

約数和(自身を含む): 213845760

約数和(自身を除く): 131873814

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 54, 63, 74, 111, 126, 189, 222, 259, 333, 378, 518, 666, 777, 999, 1554, 1998, 2331, 4662, 5861, 6993, 11722, 13986, 17583, 35166, 41027, 52749, 82054, 105498, 123081, 158247, 216857, 246162, 316494, 369243, 433714, 650571, 738486, 1107729, 1301142, 1517999, 1951713, 2215458, 3035998, 3903426, 4553997, 5855139, 9107994, 11710278, 13661991, 27323982, 40985973, 81971946]

約数ペア:

[(1, 81971946), (2, 40985973), (3, 27323982), (6, 13661991), (7, 11710278), (9, 9107994), (14, 5855139), (18, 4553997), (21, 3903426), (27, 3035998), (37, 2215458), (42, 1951713), (54, 1517999), (63, 1301142), (74, 1107729), (111, 738486), (126, 650571), (189, 433714), (222, 369243), (259, 316494), (333, 246162), (378, 216857), (518, 158247), (666, 123081), (777, 105498), (999, 82054), (1554, 52749), (1998, 41027), (2331, 35166), (4662, 17583), (5861, 13986), (6993, 11722)]