19789816

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 38001600

約数和(自身を除く): 18211784

約数列:

[1, 2, 4, 8, 79, 158, 173, 181, 316, 346, 362, 632, 692, 724, 1384, 1448, 13667, 14299, 27334, 28598, 31313, 54668, 57196, 62626, 109336, 114392, 125252, 250504, 2473727, 4947454, 9894908, 19789816]

約数ペア:

[(1, 19789816), (2, 9894908), (4, 4947454), (8, 2473727), (79, 250504), (158, 125252), (173, 114392), (181, 109336), (316, 62626), (346, 57196), (362, 54668), (632, 31313), (692, 28598), (724, 27334), (1384, 14299), (1448, 13667)]