21069324

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 57002400

約数和(自身を除く): 35933076

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 173, 199, 204, 306, 346, 398, 519, 597, 612, 692, 796, 1038, 1194, 1557, 1791, 2076, 2388, 2941, 3114, 3383, 3582, 5882, 6228, 6766, 7164, 8823, 10149, 11764, 13532, 17646, 20298, 26469, 30447, 34427, 35292, 40596, 52938, 60894, 68854, 103281, 105876, 121788, 137708, 206562, 309843, 413124, 585259, 619686, 1170518, 1239372, 1755777, 2341036, 3511554, 5267331, 7023108, 10534662, 21069324]

約数ペア:

[(1, 21069324), (2, 10534662), (3, 7023108), (4, 5267331), (6, 3511554), (9, 2341036), (12, 1755777), (17, 1239372), (18, 1170518), (34, 619686), (36, 585259), (51, 413124), (68, 309843), (102, 206562), (153, 137708), (173, 121788), (199, 105876), (204, 103281), (306, 68854), (346, 60894), (398, 52938), (519, 40596), (597, 35292), (612, 34427), (692, 30447), (796, 26469), (1038, 20298), (1194, 17646), (1557, 13532), (1791, 11764), (2076, 10149), (2388, 8823), (2941, 7164), (3114, 6766), (3383, 6228), (3582, 5882)]