21044173815

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{1060427}}^1$

素因数の和:1060458

約数の個数: 60

約数和(自身を含む): 43882631496

約数和(自身を除く): 22838457681

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 405, 441, 567, 735, 945, 1323, 2205, 2835, 3969, 6615, 19845, 1060427, 3181281, 5302135, 7422989, 9543843, 15906405, 22268967, 28631529, 37114945, 47719215, 51960923, 66806901, 85894587, 111344835, 143157645, 155882769, 200420703, 259804615, 334034505, 429472935, 467648307, 601262109, 779413845, 1002103515, 1402944921, 2338241535, 3006310545, 4208834763, 7014724605, 21044173815]

約数ペア:

[(1, 21044173815), (3, 7014724605), (5, 4208834763), (7, 3006310545), (9, 2338241535), (15, 1402944921), (21, 1002103515), (27, 779413845), (35, 601262109), (45, 467648307), (49, 429472935), (63, 334034505), (81, 259804615), (105, 200420703), (135, 155882769), (147, 143157645), (189, 111344835), (245, 85894587), (315, 66806901), (405, 51960923), (441, 47719215), (567, 37114945), (735, 28631529), (945, 22268967), (1323, 15906405), (2205, 9543843), (2835, 7422989), (3969, 5302135), (6615, 3181281), (19845, 1060427)]