18999978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1051}}^1$

素因数の和:1210

約数の個数: 32

約数和(自身を含む): 39992832

約数和(自身を除く): 20992854

約数列:

[1, 2, 3, 6, 23, 46, 69, 131, 138, 262, 393, 786, 1051, 2102, 3013, 3153, 6026, 6306, 9039, 18078, 24173, 48346, 72519, 137681, 145038, 275362, 413043, 826086, 3166663, 6333326, 9499989, 18999978]

約数ペア:

[(1, 18999978), (2, 9499989), (3, 6333326), (6, 3166663), (23, 826086), (46, 413043), (69, 275362), (131, 145038), (138, 137681), (262, 72519), (393, 48346), (786, 24173), (1051, 18078), (2102, 9039), (3013, 6306), (3153, 6026)]