21617288

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1847}}^1$

素因数の和:1890

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 31605112

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 38, 44, 56, 76, 77, 88, 133, 152, 154, 209, 266, 308, 418, 532, 616, 836, 1064, 1463, 1672, 1847, 2926, 3694, 5852, 7388, 11704, 12929, 14776, 20317, 25858, 35093, 40634, 51716, 70186, 81268, 103432, 140372, 142219, 162536, 245651, 280744, 284438, 386023, 491302, 568876, 772046, 982604, 1137752, 1544092, 1965208, 2702161, 3088184, 5404322, 10808644, 21617288]

約数ペア:

[(1, 21617288), (2, 10808644), (4, 5404322), (7, 3088184), (8, 2702161), (11, 1965208), (14, 1544092), (19, 1137752), (22, 982604), (28, 772046), (38, 568876), (44, 491302), (56, 386023), (76, 284438), (77, 280744), (88, 245651), (133, 162536), (152, 142219), (154, 140372), (209, 103432), (266, 81268), (308, 70186), (418, 51716), (532, 40634), (616, 35093), (836, 25858), (1064, 20317), (1463, 14776), (1672, 12929), (1847, 11704), (2926, 7388), (3694, 5852)]