19890986

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{751}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 14219734

約数列:

[1, 2, 17, 19, 34, 38, 41, 82, 323, 646, 697, 751, 779, 1394, 1502, 1558, 12767, 13243, 14269, 25534, 26486, 28538, 30791, 61582, 242573, 485146, 523447, 585029, 1046894, 1170058, 9945493, 19890986]

約数ペア:

[(1, 19890986), (2, 9945493), (17, 1170058), (19, 1046894), (34, 585029), (38, 523447), (41, 485146), (82, 242573), (323, 61582), (646, 30791), (697, 28538), (751, 26486), (779, 25534), (1394, 14269), (1502, 13243), (1558, 12767)]