19728306

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 47779200

約数和(自身を除く): 28050894

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 157, 179, 234, 314, 351, 358, 471, 537, 702, 942, 1074, 1413, 1611, 2041, 2327, 2826, 3222, 4082, 4239, 4654, 4833, 6123, 6981, 8478, 9666, 12246, 13962, 18369, 20943, 28103, 36738, 41886, 55107, 56206, 62829, 84309, 110214, 125658, 168618, 252927, 365339, 505854, 730678, 758781, 1096017, 1517562, 2192034, 3288051, 6576102, 9864153, 19728306]

約数ペア:

[(1, 19728306), (2, 9864153), (3, 6576102), (6, 3288051), (9, 2192034), (13, 1517562), (18, 1096017), (26, 758781), (27, 730678), (39, 505854), (54, 365339), (78, 252927), (117, 168618), (157, 125658), (179, 110214), (234, 84309), (314, 62829), (351, 56206), (358, 55107), (471, 41886), (537, 36738), (702, 28103), (942, 20943), (1074, 18369), (1413, 13962), (1611, 12246), (2041, 9666), (2327, 8478), (2826, 6981), (3222, 6123), (4082, 4833), (4239, 4654)]