21511923

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10006797

約数列:

[1, 3, 23, 31, 69, 89, 93, 113, 267, 339, 713, 2047, 2139, 2599, 2759, 3503, 6141, 7797, 8277, 10057, 10509, 30171, 63457, 80569, 190371, 231311, 241707, 311767, 693933, 935301, 7170641, 21511923]

約数ペア:

[(1, 21511923), (3, 7170641), (23, 935301), (31, 693933), (69, 311767), (89, 241707), (93, 231311), (113, 190371), (267, 80569), (339, 63457), (713, 30171), (2047, 10509), (2139, 10057), (2599, 8277), (2759, 7797), (3503, 6141)]