20409186

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 48844800

約数和(自身を除く): 28435614

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 49, 94, 98, 141, 147, 211, 282, 294, 329, 343, 422, 633, 658, 686, 987, 1029, 1266, 1477, 1974, 2058, 2303, 2954, 4431, 4606, 6909, 8862, 9917, 10339, 13818, 16121, 19834, 20678, 29751, 31017, 32242, 48363, 59502, 62034, 69419, 72373, 96726, 138838, 144746, 208257, 217119, 416514, 434238, 485933, 971866, 1457799, 2915598, 3401531, 6803062, 10204593, 20409186]

約数ペア:

[(1, 20409186), (2, 10204593), (3, 6803062), (6, 3401531), (7, 2915598), (14, 1457799), (21, 971866), (42, 485933), (47, 434238), (49, 416514), (94, 217119), (98, 208257), (141, 144746), (147, 138838), (211, 96726), (282, 72373), (294, 69419), (329, 62034), (343, 59502), (422, 48363), (633, 32242), (658, 31017), (686, 29751), (987, 20678), (1029, 19834), (1266, 16121), (1477, 13818), (1974, 10339), (2058, 9917), (2303, 8862), (2954, 6909), (4431, 4606)]