20882946

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28883454

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 71, 94, 141, 142, 149, 213, 282, 298, 329, 426, 447, 497, 658, 894, 987, 994, 1043, 1491, 1974, 2086, 2982, 3129, 3337, 6258, 6674, 7003, 10011, 10579, 14006, 20022, 21009, 21158, 23359, 31737, 42018, 46718, 49021, 63474, 70077, 74053, 98042, 140154, 147063, 148106, 222159, 294126, 444318, 497213, 994426, 1491639, 2983278, 3480491, 6960982, 10441473, 20882946]

約数ペア:

[(1, 20882946), (2, 10441473), (3, 6960982), (6, 3480491), (7, 2983278), (14, 1491639), (21, 994426), (42, 497213), (47, 444318), (71, 294126), (94, 222159), (141, 148106), (142, 147063), (149, 140154), (213, 98042), (282, 74053), (298, 70077), (329, 63474), (426, 49021), (447, 46718), (497, 42018), (658, 31737), (894, 23359), (987, 21158), (994, 21009), (1043, 20022), (1491, 14006), (1974, 10579), (2086, 10011), (2982, 7003), (3129, 6674), (3337, 6258)]