18644528

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2729}}^1$

素因数の和:2805

約数の個数: 40

約数和(自身を含む): 41976480

約数和(自身を除く): 23331952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 2729, 3416, 5458, 6832, 10916, 19103, 21832, 38206, 43664, 76412, 152824, 166469, 305648, 332938, 665876, 1165283, 1331752, 2330566, 2663504, 4661132, 9322264, 18644528]

約数ペア:

[(1, 18644528), (2, 9322264), (4, 4661132), (7, 2663504), (8, 2330566), (14, 1331752), (16, 1165283), (28, 665876), (56, 332938), (61, 305648), (112, 166469), (122, 152824), (244, 76412), (427, 43664), (488, 38206), (854, 21832), (976, 19103), (1708, 10916), (2729, 6832), (3416, 5458)]