19677273

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 34189056

約数和(自身を除く): 14511783

約数列:

[1, 3, 7, 11, 21, 33, 43, 49, 77, 129, 147, 231, 283, 301, 473, 539, 849, 903, 1419, 1617, 1981, 2107, 3113, 3311, 5943, 6321, 9339, 9933, 12169, 13867, 21791, 23177, 36507, 41601, 65373, 69531, 85183, 133859, 152537, 255549, 401577, 457611, 596281, 937013, 1788843, 2811039, 6559091, 19677273]

約数ペア:

[(1, 19677273), (3, 6559091), (7, 2811039), (11, 1788843), (21, 937013), (33, 596281), (43, 457611), (49, 401577), (77, 255549), (129, 152537), (147, 133859), (231, 85183), (283, 69531), (301, 65373), (473, 41601), (539, 36507), (849, 23177), (903, 21791), (1419, 13867), (1617, 12169), (1981, 9933), (2107, 9339), (3113, 6321), (3311, 5943)]