20306142

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15889}}^1$

素因数の和:15968

約数の個数: 24

約数和(自身を含む): 44619120

約数和(自身を除く): 24312978

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15889, 31778, 47667, 95334, 143001, 286002, 1128119, 2256238, 3384357, 6768714, 10153071, 20306142]

約数ペア:

[(1, 20306142), (2, 10153071), (3, 6768714), (6, 3384357), (9, 2256238), (18, 1128119), (71, 286002), (142, 143001), (213, 95334), (426, 47667), (639, 31778), (1278, 15889)]