21078672

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:408

約数の個数: 80

約数和(自身を含む): 57936768

約数和(自身を除く): 36858096

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 61, 69, 92, 122, 138, 183, 184, 244, 276, 313, 366, 368, 488, 552, 626, 732, 939, 976, 1104, 1252, 1403, 1464, 1878, 2504, 2806, 2928, 3756, 4209, 5008, 5612, 7199, 7512, 8418, 11224, 14398, 15024, 16836, 19093, 21597, 22448, 28796, 33672, 38186, 43194, 57279, 57592, 67344, 76372, 86388, 114558, 115184, 152744, 172776, 229116, 305488, 345552, 439139, 458232, 878278, 916464, 1317417, 1756556, 2634834, 3513112, 5269668, 7026224, 10539336, 21078672]

約数ペア:

[(1, 21078672), (2, 10539336), (3, 7026224), (4, 5269668), (6, 3513112), (8, 2634834), (12, 1756556), (16, 1317417), (23, 916464), (24, 878278), (46, 458232), (48, 439139), (61, 345552), (69, 305488), (92, 229116), (122, 172776), (138, 152744), (183, 115184), (184, 114558), (244, 86388), (276, 76372), (313, 67344), (366, 57592), (368, 57279), (488, 43194), (552, 38186), (626, 33672), (732, 28796), (939, 22448), (976, 21597), (1104, 19093), (1252, 16836), (1403, 15024), (1464, 14398), (1878, 11224), (2504, 8418), (2806, 7512), (2928, 7199), (3756, 5612), (4209, 5008)]