21658266

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:361

約数の個数: 80

約数和(自身を含む): 56453760

約数和(自身を除く): 34795494

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 81, 126, 142, 162, 189, 213, 269, 378, 426, 497, 538, 567, 639, 807, 994, 1134, 1278, 1491, 1614, 1883, 1917, 2421, 2982, 3766, 3834, 4473, 4842, 5649, 5751, 7263, 8946, 11298, 11502, 13419, 14526, 16947, 19099, 21789, 26838, 33894, 38198, 40257, 43578, 50841, 57297, 80514, 101682, 114594, 133693, 152523, 171891, 267386, 305046, 343782, 401079, 515673, 802158, 1031346, 1203237, 1547019, 2406474, 3094038, 3609711, 7219422, 10829133, 21658266]

約数ペア:

[(1, 21658266), (2, 10829133), (3, 7219422), (6, 3609711), (7, 3094038), (9, 2406474), (14, 1547019), (18, 1203237), (21, 1031346), (27, 802158), (42, 515673), (54, 401079), (63, 343782), (71, 305046), (81, 267386), (126, 171891), (142, 152523), (162, 133693), (189, 114594), (213, 101682), (269, 80514), (378, 57297), (426, 50841), (497, 43578), (538, 40257), (567, 38198), (639, 33894), (807, 26838), (994, 21789), (1134, 19099), (1278, 16947), (1491, 14526), (1614, 13419), (1883, 11502), (1917, 11298), (2421, 8946), (2982, 7263), (3766, 5751), (3834, 5649), (4473, 4842)]