19484504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4357}}^1$

素因数の和:4419

約数の個数: 32

約数和(自身を含む): 40267920

約数和(自身を除く): 20783416

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4357, 4472, 8714, 17428, 34856, 56641, 113282, 187351, 226564, 374702, 453128, 749404, 1498808, 2435563, 4871126, 9742252, 19484504]

約数ペア:

[(1, 19484504), (2, 9742252), (4, 4871126), (8, 2435563), (13, 1498808), (26, 749404), (43, 453128), (52, 374702), (86, 226564), (104, 187351), (172, 113282), (344, 56641), (559, 34856), (1118, 17428), (2236, 8714), (4357, 4472)]