19885012

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{739}}^1$

素因数の和:812

約数の個数: 36

約数和(自身を含む): 41149920

約数和(自身を除く): 21264908

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 739, 868, 961, 1478, 1922, 2956, 3844, 5173, 6727, 10346, 13454, 20692, 22909, 26908, 45818, 91636, 160363, 320726, 641452, 710179, 1420358, 2840716, 4971253, 9942506, 19885012]

約数ペア:

[(1, 19885012), (2, 9942506), (4, 4971253), (7, 2840716), (14, 1420358), (28, 710179), (31, 641452), (62, 320726), (124, 160363), (217, 91636), (434, 45818), (739, 26908), (868, 22909), (961, 20692), (1478, 13454), (1922, 10346), (2956, 6727), (3844, 5173)]