19681384

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 38041920

約数和(自身を除く): 18360536

約数列:

[1, 2, 4, 8, 67, 73, 134, 146, 268, 292, 503, 536, 584, 1006, 2012, 4024, 4891, 9782, 19564, 33701, 36719, 39128, 67402, 73438, 134804, 146876, 269608, 293752, 2460173, 4920346, 9840692, 19681384]

約数ペア:

[(1, 19681384), (2, 9840692), (4, 4920346), (8, 2460173), (67, 293752), (73, 269608), (134, 146876), (146, 134804), (268, 73438), (292, 67402), (503, 39128), (536, 36719), (584, 33701), (1006, 19564), (2012, 9782), (4024, 4891)]