21330378

素因数分解:

$2^1\times 3^4\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:740

約数の個数: 40

約数和(自身を含む): 48059748

約数和(自身を除く): 26729370

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 353, 373, 706, 746, 1059, 1119, 2118, 2238, 3177, 3357, 6354, 6714, 9531, 10071, 19062, 20142, 28593, 30213, 57186, 60426, 131669, 263338, 395007, 790014, 1185021, 2370042, 3555063, 7110126, 10665189, 21330378]

約数ペア:

[(1, 21330378), (2, 10665189), (3, 7110126), (6, 3555063), (9, 2370042), (18, 1185021), (27, 790014), (54, 395007), (81, 263338), (162, 131669), (353, 60426), (373, 57186), (706, 30213), (746, 28593), (1059, 20142), (1119, 19062), (2118, 10071), (2238, 9531), (3177, 6714), (3357, 6354)]