21193260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 65463552

約数和(自身を除く): 44270292

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 163, 165, 197, 220, 326, 330, 394, 489, 591, 652, 660, 788, 815, 978, 985, 1182, 1630, 1793, 1956, 1970, 2167, 2364, 2445, 2955, 3260, 3586, 3940, 4334, 4890, 5379, 5910, 6501, 7172, 8668, 8965, 9780, 10758, 10835, 11820, 13002, 17930, 21516, 21670, 26004, 26895, 32111, 32505, 35860, 43340, 53790, 64222, 65010, 96333, 107580, 128444, 130020, 160555, 192666, 321110, 353221, 385332, 481665, 642220, 706442, 963330, 1059663, 1412884, 1766105, 1926660, 2119326, 3532210, 4238652, 5298315, 7064420, 10596630, 21193260]

約数ペア:

[(1, 21193260), (2, 10596630), (3, 7064420), (4, 5298315), (5, 4238652), (6, 3532210), (10, 2119326), (11, 1926660), (12, 1766105), (15, 1412884), (20, 1059663), (22, 963330), (30, 706442), (33, 642220), (44, 481665), (55, 385332), (60, 353221), (66, 321110), (110, 192666), (132, 160555), (163, 130020), (165, 128444), (197, 107580), (220, 96333), (326, 65010), (330, 64222), (394, 53790), (489, 43340), (591, 35860), (652, 32505), (660, 32111), (788, 26895), (815, 26004), (978, 21670), (985, 21516), (1182, 17930), (1630, 13002), (1793, 11820), (1956, 10835), (1970, 10758), (2167, 9780), (2364, 8965), (2445, 8668), (2955, 7172), (3260, 6501), (3586, 5910), (3940, 5379), (4334, 4890)]