19787964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 54564048

約数和(自身を除く): 34776084

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 73, 84, 98, 146, 147, 196, 219, 292, 294, 438, 461, 511, 588, 876, 922, 1022, 1383, 1533, 1844, 2044, 2766, 3066, 3227, 3577, 5532, 6132, 6454, 7154, 9681, 10731, 12908, 14308, 19362, 21462, 22589, 33653, 38724, 42924, 45178, 67306, 67767, 90356, 100959, 134612, 135534, 201918, 235571, 271068, 403836, 471142, 706713, 942284, 1413426, 1648997, 2826852, 3297994, 4946991, 6595988, 9893982, 19787964]

約数ペア:

[(1, 19787964), (2, 9893982), (3, 6595988), (4, 4946991), (6, 3297994), (7, 2826852), (12, 1648997), (14, 1413426), (21, 942284), (28, 706713), (42, 471142), (49, 403836), (73, 271068), (84, 235571), (98, 201918), (146, 135534), (147, 134612), (196, 100959), (219, 90356), (292, 67767), (294, 67306), (438, 45178), (461, 42924), (511, 38724), (588, 33653), (876, 22589), (922, 21462), (1022, 19362), (1383, 14308), (1533, 12908), (1844, 10731), (2044, 9681), (2766, 7154), (3066, 6454), (3227, 6132), (3577, 5532)]