211721688

素因数分解:

$2^3\times 3^4\times {\mathrm{397}}^1\times {\mathrm{823}}^1$

素因数の和:1238

約数の個数: 80

約数和(自身を含む): 595232880

約数和(自身を除く): 383511192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 397, 648, 794, 823, 1191, 1588, 1646, 2382, 2469, 3176, 3292, 3573, 4764, 4938, 6584, 7146, 7407, 9528, 9876, 10719, 14292, 14814, 19752, 21438, 22221, 28584, 29628, 32157, 42876, 44442, 59256, 64314, 66663, 85752, 88884, 128628, 133326, 177768, 257256, 266652, 326731, 533304, 653462, 980193, 1306924, 1960386, 2613848, 2940579, 3920772, 5881158, 7841544, 8821737, 11762316, 17643474, 23524632, 26465211, 35286948, 52930422, 70573896, 105860844, 211721688]

約数ペア:

[(1, 211721688), (2, 105860844), (3, 70573896), (4, 52930422), (6, 35286948), (8, 26465211), (9, 23524632), (12, 17643474), (18, 11762316), (24, 8821737), (27, 7841544), (36, 5881158), (54, 3920772), (72, 2940579), (81, 2613848), (108, 1960386), (162, 1306924), (216, 980193), (324, 653462), (397, 533304), (648, 326731), (794, 266652), (823, 257256), (1191, 177768), (1588, 133326), (1646, 128628), (2382, 88884), (2469, 85752), (3176, 66663), (3292, 64314), (3573, 59256), (4764, 44442), (4938, 42876), (6584, 32157), (7146, 29628), (7407, 28584), (9528, 22221), (9876, 21438), (10719, 19752), (14292, 14814)]