12180987

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 22014720

約数和(自身を除く): 9833733

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 107, 117, 139, 273, 321, 417, 749, 819, 963, 973, 1251, 1391, 1807, 2247, 2919, 4173, 5421, 6741, 8757, 9737, 12519, 12649, 14873, 16263, 29211, 37947, 44619, 87633, 104111, 113841, 133857, 193349, 312333, 580047, 936999, 1353443, 1740141, 4060329, 12180987]

約数ペア:

[(1, 12180987), (3, 4060329), (7, 1740141), (9, 1353443), (13, 936999), (21, 580047), (39, 312333), (63, 193349), (91, 133857), (107, 113841), (117, 104111), (139, 87633), (273, 44619), (321, 37947), (417, 29211), (749, 16263), (819, 14873), (963, 12649), (973, 12519), (1251, 9737), (1391, 8757), (1807, 6741), (2247, 5421), (2919, 4173)]