21675984

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 62180544

約数和(自身を除く): 40504560

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 122, 132, 176, 183, 244, 264, 366, 488, 528, 671, 673, 732, 976, 1342, 1346, 1464, 2013, 2019, 2684, 2692, 2928, 4026, 4038, 5368, 5384, 7403, 8052, 8076, 10736, 10768, 14806, 16104, 16152, 22209, 29612, 32208, 32304, 41053, 44418, 59224, 82106, 88836, 118448, 123159, 164212, 177672, 246318, 328424, 355344, 451583, 492636, 656848, 903166, 985272, 1354749, 1806332, 1970544, 2709498, 3612664, 5418996, 7225328, 10837992, 21675984]

約数ペア:

[(1, 21675984), (2, 10837992), (3, 7225328), (4, 5418996), (6, 3612664), (8, 2709498), (11, 1970544), (12, 1806332), (16, 1354749), (22, 985272), (24, 903166), (33, 656848), (44, 492636), (48, 451583), (61, 355344), (66, 328424), (88, 246318), (122, 177672), (132, 164212), (176, 123159), (183, 118448), (244, 88836), (264, 82106), (366, 59224), (488, 44418), (528, 41053), (671, 32304), (673, 32208), (732, 29612), (976, 22209), (1342, 16152), (1346, 16104), (1464, 14806), (2013, 10768), (2019, 10736), (2684, 8076), (2692, 8052), (2928, 7403), (4026, 5384), (4038, 5368)]