18465987

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 8629053

約数列:

[1, 3, 23, 31, 69, 89, 93, 97, 267, 291, 713, 2047, 2139, 2231, 2759, 3007, 6141, 6693, 8277, 8633, 9021, 25899, 63457, 69161, 190371, 198559, 207483, 267623, 595677, 802869, 6155329, 18465987]

約数ペア:

[(1, 18465987), (3, 6155329), (23, 802869), (31, 595677), (69, 267623), (89, 207483), (93, 198559), (97, 190371), (267, 69161), (291, 63457), (713, 25899), (2047, 9021), (2139, 8633), (2231, 8277), (2759, 6693), (3007, 6141)]