20185181289

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2738459}}^1$

素因数の和:2738491

約数の個数: 40

約数和(自身を含む): 37111609920

約数和(自身を除く): 16926428631

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 7371, 2738459, 8215377, 19169213, 24646131, 35599967, 57507639, 73938393, 106799901, 172522917, 221815179, 249199769, 320399703, 517568751, 747599307, 961199109, 1552706253, 2242797921, 2883597327, 6728393763, 20185181289]

約数ペア:

[(1, 20185181289), (3, 6728393763), (7, 2883597327), (9, 2242797921), (13, 1552706253), (21, 961199109), (27, 747599307), (39, 517568751), (63, 320399703), (81, 249199769), (91, 221815179), (117, 172522917), (189, 106799901), (273, 73938393), (351, 57507639), (567, 35599967), (819, 24646131), (1053, 19169213), (2457, 8215377), (7371, 2738459)]