20335818

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 43797600

約数和(自身を除く): 23461782

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 149, 258, 298, 447, 529, 894, 989, 1058, 1587, 1978, 2967, 3174, 3427, 5934, 6407, 6854, 10281, 12814, 19221, 20562, 22747, 38442, 45494, 68241, 78821, 136482, 147361, 157642, 236463, 294722, 442083, 472926, 884166, 3389303, 6778606, 10167909, 20335818]

約数ペア:

[(1, 20335818), (2, 10167909), (3, 6778606), (6, 3389303), (23, 884166), (43, 472926), (46, 442083), (69, 294722), (86, 236463), (129, 157642), (138, 147361), (149, 136482), (258, 78821), (298, 68241), (447, 45494), (529, 38442), (894, 22747), (989, 20562), (1058, 19221), (1587, 12814), (1978, 10281), (2967, 6854), (3174, 6407), (3427, 5934)]