21784336

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 52675200

約数和(自身を除く): 30890864

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 38, 56, 58, 76, 112, 116, 133, 152, 203, 232, 266, 304, 353, 406, 464, 532, 551, 706, 812, 1064, 1102, 1412, 1624, 2128, 2204, 2471, 2824, 3248, 3857, 4408, 4942, 5648, 6707, 7714, 8816, 9884, 10237, 13414, 15428, 19768, 20474, 26828, 30856, 39536, 40948, 46949, 53656, 61712, 71659, 81896, 93898, 107312, 143318, 163792, 187796, 194503, 286636, 375592, 389006, 573272, 751184, 778012, 1146544, 1361521, 1556024, 2723042, 3112048, 5446084, 10892168, 21784336]

約数ペア:

[(1, 21784336), (2, 10892168), (4, 5446084), (7, 3112048), (8, 2723042), (14, 1556024), (16, 1361521), (19, 1146544), (28, 778012), (29, 751184), (38, 573272), (56, 389006), (58, 375592), (76, 286636), (112, 194503), (116, 187796), (133, 163792), (152, 143318), (203, 107312), (232, 93898), (266, 81896), (304, 71659), (353, 61712), (406, 53656), (464, 46949), (532, 40948), (551, 39536), (706, 30856), (812, 26828), (1064, 20474), (1102, 19768), (1412, 15428), (1624, 13414), (2128, 10237), (2204, 9884), (2471, 8816), (2824, 7714), (3248, 6707), (3857, 5648), (4408, 4942)]