21857784

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:369

約数の個数: 96

約数和(自身を含む): 62849520

約数和(自身を除く): 40991736

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 136, 156, 169, 204, 221, 312, 317, 338, 408, 442, 507, 634, 663, 676, 884, 951, 1014, 1268, 1326, 1352, 1768, 1902, 2028, 2536, 2652, 2873, 3804, 4056, 4121, 5304, 5389, 5746, 7608, 8242, 8619, 10778, 11492, 12363, 16167, 16484, 17238, 21556, 22984, 24726, 32334, 32968, 34476, 43112, 49452, 53573, 64668, 68952, 70057, 98904, 107146, 129336, 140114, 160719, 210171, 214292, 280228, 321438, 420342, 428584, 560456, 642876, 840684, 910741, 1285752, 1681368, 1821482, 2732223, 3642964, 5464446, 7285928, 10928892, 21857784]

約数ペア:

[(1, 21857784), (2, 10928892), (3, 7285928), (4, 5464446), (6, 3642964), (8, 2732223), (12, 1821482), (13, 1681368), (17, 1285752), (24, 910741), (26, 840684), (34, 642876), (39, 560456), (51, 428584), (52, 420342), (68, 321438), (78, 280228), (102, 214292), (104, 210171), (136, 160719), (156, 140114), (169, 129336), (204, 107146), (221, 98904), (312, 70057), (317, 68952), (338, 64668), (408, 53573), (442, 49452), (507, 43112), (634, 34476), (663, 32968), (676, 32334), (884, 24726), (951, 22984), (1014, 21556), (1268, 17238), (1326, 16484), (1352, 16167), (1768, 12363), (1902, 11492), (2028, 10778), (2536, 8619), (2652, 8242), (2873, 7608), (3804, 5746), (4056, 5389), (4121, 5304)]