19900972

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{54673}}^1$

素因数の和:54697

約数の個数: 24

約数和(自身を含む): 42864416

約数和(自身を除く): 22963444

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 54673, 109346, 218692, 382711, 710749, 765422, 1421498, 1530844, 2842996, 4975243, 9950486, 19900972]

約数ペア:

[(1, 19900972), (2, 9950486), (4, 4975243), (7, 2842996), (13, 1530844), (14, 1421498), (26, 765422), (28, 710749), (52, 382711), (91, 218692), (182, 109346), (364, 54673)]