31128669

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 56583072

約数和(自身を除く): 25454403

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 67, 99, 117, 143, 171, 201, 209, 247, 361, 429, 603, 627, 737, 741, 871, 1083, 1273, 1287, 1881, 2211, 2223, 2613, 2717, 3249, 3819, 3971, 4693, 6633, 7839, 8151, 9581, 11457, 11913, 14003, 14079, 16549, 24187, 24453, 28743, 35739, 42009, 42237, 49647, 51623, 72561, 86229, 126027, 148941, 154869, 182039, 217683, 266057, 314431, 464607, 546117, 798171, 943293, 1638351, 2394513, 2829879, 3458741, 10376223, 31128669]

約数ペア:

[(1, 31128669), (3, 10376223), (9, 3458741), (11, 2829879), (13, 2394513), (19, 1638351), (33, 943293), (39, 798171), (57, 546117), (67, 464607), (99, 314431), (117, 266057), (143, 217683), (171, 182039), (201, 154869), (209, 148941), (247, 126027), (361, 86229), (429, 72561), (603, 51623), (627, 49647), (737, 42237), (741, 42009), (871, 35739), (1083, 28743), (1273, 24453), (1287, 24187), (1881, 16549), (2211, 14079), (2223, 14003), (2613, 11913), (2717, 11457), (3249, 9581), (3819, 8151), (3971, 7839), (4693, 6633)]