21384664

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16603}}^1$

素因数の和:16639

約数の個数: 32

約数和(自身を含む): 47819520

約数和(自身を除く): 26434856

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 16603, 33206, 66412, 116221, 132824, 232442, 381869, 464884, 763738, 929768, 1527476, 2673083, 3054952, 5346166, 10692332, 21384664]

約数ペア:

[(1, 21384664), (2, 10692332), (4, 5346166), (7, 3054952), (8, 2673083), (14, 1527476), (23, 929768), (28, 763738), (46, 464884), (56, 381869), (92, 232442), (161, 132824), (184, 116221), (322, 66412), (644, 33206), (1288, 16603)]