21135072

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{4493}}^1$

素因数の和:4520

約数の個数: 72

約数和(自身を含む): 64551816

約数和(自身を除く): 43416744

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 392, 588, 672, 784, 1176, 1568, 2352, 4493, 4704, 8986, 13479, 17972, 26958, 31451, 35944, 53916, 62902, 71888, 94353, 107832, 125804, 143776, 188706, 215664, 220157, 251608, 377412, 431328, 440314, 503216, 660471, 754824, 880628, 1006432, 1320942, 1509648, 1761256, 2641884, 3019296, 3522512, 5283768, 7045024, 10567536, 21135072]

約数ペア:

[(1, 21135072), (2, 10567536), (3, 7045024), (4, 5283768), (6, 3522512), (7, 3019296), (8, 2641884), (12, 1761256), (14, 1509648), (16, 1320942), (21, 1006432), (24, 880628), (28, 754824), (32, 660471), (42, 503216), (48, 440314), (49, 431328), (56, 377412), (84, 251608), (96, 220157), (98, 215664), (112, 188706), (147, 143776), (168, 125804), (196, 107832), (224, 94353), (294, 71888), (336, 62902), (392, 53916), (588, 35944), (672, 31451), (784, 26958), (1176, 17972), (1568, 13479), (2352, 8986), (4493, 4704)]