19747869

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9282531

約数列:

[1, 3, 23, 29, 69, 71, 87, 139, 213, 417, 667, 1633, 2001, 2059, 3197, 4031, 4899, 6177, 9591, 9869, 12093, 29607, 47357, 92713, 142071, 226987, 278139, 286201, 680961, 858603, 6582623, 19747869]

約数ペア:

[(1, 19747869), (3, 6582623), (23, 858603), (29, 680961), (69, 286201), (71, 278139), (87, 226987), (139, 142071), (213, 92713), (417, 47357), (667, 29607), (1633, 12093), (2001, 9869), (2059, 9591), (3197, 6177), (4031, 4899)]