21162075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 38676096

約数和(自身を除く): 17514021

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 113, 165, 227, 275, 339, 565, 681, 825, 1135, 1243, 1695, 2497, 2825, 3405, 3729, 5675, 6215, 7491, 8475, 12485, 17025, 18645, 25651, 31075, 37455, 62425, 76953, 93225, 128255, 187275, 282161, 384765, 641275, 846483, 1410805, 1923825, 4232415, 7054025, 21162075]

約数ペア:

[(1, 21162075), (3, 7054025), (5, 4232415), (11, 1923825), (15, 1410805), (25, 846483), (33, 641275), (55, 384765), (75, 282161), (113, 187275), (165, 128255), (227, 93225), (275, 76953), (339, 62425), (565, 37455), (681, 31075), (825, 25651), (1135, 18645), (1243, 17025), (1695, 12485), (2497, 8475), (2825, 7491), (3405, 6215), (3729, 5675)]