18320698

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 31321728

約数和(自身を除く): 13001030

約数列:

[1, 2, 11, 22, 37, 71, 74, 142, 317, 407, 634, 781, 814, 1562, 2627, 3487, 5254, 6974, 11729, 22507, 23458, 28897, 45014, 57794, 129019, 247577, 258038, 495154, 832759, 1665518, 9160349, 18320698]

約数ペア:

[(1, 18320698), (2, 9160349), (11, 1665518), (22, 832759), (37, 495154), (71, 258038), (74, 247577), (142, 129019), (317, 57794), (407, 45014), (634, 28897), (781, 23458), (814, 22507), (1562, 11729), (2627, 6974), (3487, 5254)]