19536867

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 34245120

約数和(自身を除く): 14708253

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 97, 139, 161, 207, 291, 417, 483, 679, 873, 973, 1251, 1449, 2037, 2231, 2919, 3197, 6111, 6693, 8757, 9591, 13483, 15617, 20079, 22379, 28773, 40449, 46851, 67137, 94381, 121347, 140553, 201411, 283143, 310109, 849429, 930327, 2170763, 2790981, 6512289, 19536867]

約数ペア:

[(1, 19536867), (3, 6512289), (7, 2790981), (9, 2170763), (21, 930327), (23, 849429), (63, 310109), (69, 283143), (97, 201411), (139, 140553), (161, 121347), (207, 94381), (291, 67137), (417, 46851), (483, 40449), (679, 28773), (873, 22379), (973, 20079), (1251, 15617), (1449, 13483), (2037, 9591), (2231, 8757), (2919, 6693), (3197, 6111)]