21283192

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 27504008

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 83, 133, 152, 166, 241, 266, 332, 482, 532, 581, 664, 964, 1064, 1162, 1577, 1687, 1928, 2324, 3154, 3374, 4579, 4648, 6308, 6748, 9158, 11039, 12616, 13496, 18316, 20003, 22078, 32053, 36632, 40006, 44156, 64106, 80012, 88312, 128212, 140021, 160024, 256424, 280042, 380057, 560084, 760114, 1120168, 1520228, 2660399, 3040456, 5320798, 10641596, 21283192]

約数ペア:

[(1, 21283192), (2, 10641596), (4, 5320798), (7, 3040456), (8, 2660399), (14, 1520228), (19, 1120168), (28, 760114), (38, 560084), (56, 380057), (76, 280042), (83, 256424), (133, 160024), (152, 140021), (166, 128212), (241, 88312), (266, 80012), (332, 64106), (482, 44156), (532, 40006), (581, 36632), (664, 32053), (964, 22078), (1064, 20003), (1162, 18316), (1577, 13496), (1687, 12616), (1928, 11039), (2324, 9158), (3154, 6748), (3374, 6308), (4579, 4648)]