21003892

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3037}}^1$

素因数の和:3080

約数の個数: 48

約数和(自身を含む): 47635840

約数和(自身を除く): 26631948

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 52, 76, 91, 133, 182, 247, 266, 364, 494, 532, 988, 1729, 3037, 3458, 6074, 6916, 12148, 21259, 39481, 42518, 57703, 78962, 85036, 115406, 157924, 230812, 276367, 403921, 552734, 750139, 807842, 1105468, 1500278, 1615684, 3000556, 5250973, 10501946, 21003892]

約数ペア:

[(1, 21003892), (2, 10501946), (4, 5250973), (7, 3000556), (13, 1615684), (14, 1500278), (19, 1105468), (26, 807842), (28, 750139), (38, 552734), (52, 403921), (76, 276367), (91, 230812), (133, 157924), (182, 115406), (247, 85036), (266, 78962), (364, 57703), (494, 42518), (532, 39481), (988, 21259), (1729, 12148), (3037, 6916), (3458, 6074)]