19992231

素因数分解:

$3^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{761}}^1$

素因数の和:916

約数の個数: 32

約数和(自身を含む): 34137600

約数和(自身を除く): 14145369

約数列:

[1, 3, 7, 9, 21, 27, 63, 139, 189, 417, 761, 973, 1251, 2283, 2919, 3753, 5327, 6849, 8757, 15981, 20547, 26271, 47943, 105779, 143829, 317337, 740453, 952011, 2221359, 2856033, 6664077, 19992231]

約数ペア:

[(1, 19992231), (3, 6664077), (7, 2856033), (9, 2221359), (21, 952011), (27, 740453), (63, 317337), (139, 143829), (189, 105779), (417, 47943), (761, 26271), (973, 20547), (1251, 15981), (2283, 8757), (2919, 6849), (3753, 5327)]