21485128

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2383}}^1$

素因数の和:2426

約数の個数: 48

約数和(自身を含む): 48919680

約数和(自身を除く): 27434552

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 161, 184, 196, 322, 392, 644, 1127, 1288, 2254, 2383, 4508, 4766, 9016, 9532, 16681, 19064, 33362, 54809, 66724, 109618, 116767, 133448, 219236, 233534, 383663, 438472, 467068, 767326, 934136, 1534652, 2685641, 3069304, 5371282, 10742564, 21485128]

約数ペア:

[(1, 21485128), (2, 10742564), (4, 5371282), (7, 3069304), (8, 2685641), (14, 1534652), (23, 934136), (28, 767326), (46, 467068), (49, 438472), (56, 383663), (92, 233534), (98, 219236), (161, 133448), (184, 116767), (196, 109618), (322, 66724), (392, 54809), (644, 33362), (1127, 19064), (1288, 16681), (2254, 9532), (2383, 9016), (4508, 4766)]