21124785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 37844352

約数和(自身を除く): 16719567

約数列:

[1, 3, 5, 11, 15, 33, 55, 103, 113, 121, 165, 309, 339, 363, 515, 565, 605, 1133, 1243, 1545, 1695, 1815, 3399, 3729, 5665, 6215, 11639, 12463, 13673, 16995, 18645, 34917, 37389, 41019, 58195, 62315, 68365, 128029, 174585, 186945, 205095, 384087, 640145, 1408319, 1920435, 4224957, 7041595, 21124785]

約数ペア:

[(1, 21124785), (3, 7041595), (5, 4224957), (11, 1920435), (15, 1408319), (33, 640145), (55, 384087), (103, 205095), (113, 186945), (121, 174585), (165, 128029), (309, 68365), (339, 62315), (363, 58195), (515, 41019), (565, 37389), (605, 34917), (1133, 18645), (1243, 16995), (1545, 13673), (1695, 12463), (1815, 11639), (3399, 6215), (3729, 5665)]