20327748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 55770624

約数和(自身を除く): 35442876

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 181, 191, 196, 294, 362, 382, 543, 573, 588, 724, 764, 1086, 1146, 1267, 1337, 2172, 2292, 2534, 2674, 3801, 4011, 5068, 5348, 7602, 8022, 8869, 9359, 15204, 16044, 17738, 18718, 26607, 28077, 34571, 35476, 37436, 53214, 56154, 69142, 103713, 106428, 112308, 138284, 207426, 241997, 414852, 483994, 725991, 967988, 1451982, 1693979, 2903964, 3387958, 5081937, 6775916, 10163874, 20327748]

約数ペア:

[(1, 20327748), (2, 10163874), (3, 6775916), (4, 5081937), (6, 3387958), (7, 2903964), (12, 1693979), (14, 1451982), (21, 967988), (28, 725991), (42, 483994), (49, 414852), (84, 241997), (98, 207426), (147, 138284), (181, 112308), (191, 106428), (196, 103713), (294, 69142), (362, 56154), (382, 53214), (543, 37436), (573, 35476), (588, 34571), (724, 28077), (764, 26607), (1086, 18718), (1146, 17738), (1267, 16044), (1337, 15204), (2172, 9359), (2292, 8869), (2534, 8022), (2674, 7602), (3801, 5348), (4011, 5068)]