21023548

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 47548032

約数和(自身を除く): 26524484

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 49, 52, 74, 91, 98, 148, 182, 196, 223, 259, 364, 446, 481, 518, 637, 892, 962, 1036, 1274, 1561, 1813, 1924, 2548, 2899, 3122, 3367, 3626, 5798, 6244, 6734, 7252, 8251, 10927, 11596, 13468, 16502, 20293, 21854, 23569, 33004, 40586, 43708, 47138, 57757, 81172, 94276, 107263, 115514, 142051, 214526, 231028, 284102, 404299, 429052, 568204, 750841, 808598, 1501682, 1617196, 3003364, 5255887, 10511774, 21023548]

約数ペア:

[(1, 21023548), (2, 10511774), (4, 5255887), (7, 3003364), (13, 1617196), (14, 1501682), (26, 808598), (28, 750841), (37, 568204), (49, 429052), (52, 404299), (74, 284102), (91, 231028), (98, 214526), (148, 142051), (182, 115514), (196, 107263), (223, 94276), (259, 81172), (364, 57757), (446, 47138), (481, 43708), (518, 40586), (637, 33004), (892, 23569), (962, 21854), (1036, 20293), (1274, 16502), (1561, 13468), (1813, 11596), (1924, 10927), (2548, 8251), (2899, 7252), (3122, 6734), (3367, 6244), (3626, 5798)]