20885085

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1879}}^1$

素因数の和:1922

約数の個数: 48

約数和(自身を含む): 41059200

約数和(自身を除く): 20174115

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 741, 855, 1235, 1879, 2223, 3705, 5637, 9395, 11115, 16911, 24427, 28185, 35701, 73281, 84555, 107103, 122135, 178505, 219843, 321309, 366405, 464113, 535515, 1099215, 1392339, 1606545, 2320565, 4177017, 6961695, 20885085]

約数ペア:

[(1, 20885085), (3, 6961695), (5, 4177017), (9, 2320565), (13, 1606545), (15, 1392339), (19, 1099215), (39, 535515), (45, 464113), (57, 366405), (65, 321309), (95, 219843), (117, 178505), (171, 122135), (195, 107103), (247, 84555), (285, 73281), (585, 35701), (741, 28185), (855, 24427), (1235, 16911), (1879, 11115), (2223, 9395), (3705, 5637)]