21174120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5347}}^1$

素因数の和:5375

約数の個数: 96

約数和(自身を含む): 75085920

約数和(自身を除く): 53911800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5347, 10694, 16041, 21388, 26735, 32082, 42776, 48123, 53470, 58817, 64164, 80205, 96246, 106940, 117634, 128328, 160410, 176451, 192492, 213880, 235268, 240615, 294085, 320820, 352902, 384984, 470536, 481230, 529353, 588170, 641640, 705804, 882255, 962460, 1058706, 1176340, 1411608, 1764510, 1924920, 2117412, 2352680, 2646765, 3529020, 4234824, 5293530, 7058040, 10587060, 21174120]

約数ペア:

[(1, 21174120), (2, 10587060), (3, 7058040), (4, 5293530), (5, 4234824), (6, 3529020), (8, 2646765), (9, 2352680), (10, 2117412), (11, 1924920), (12, 1764510), (15, 1411608), (18, 1176340), (20, 1058706), (22, 962460), (24, 882255), (30, 705804), (33, 641640), (36, 588170), (40, 529353), (44, 481230), (45, 470536), (55, 384984), (60, 352902), (66, 320820), (72, 294085), (88, 240615), (90, 235268), (99, 213880), (110, 192492), (120, 176451), (132, 160410), (165, 128328), (180, 117634), (198, 106940), (220, 96246), (264, 80205), (330, 64164), (360, 58817), (396, 53470), (440, 48123), (495, 42776), (660, 32082), (792, 26735), (990, 21388), (1320, 16041), (1980, 10694), (3960, 5347)]