21176784

素因数分解:

$2^4\times 3^2\times {\mathrm{199}}^1\times {\mathrm{739}}^1$

素因数の和:952

約数の個数: 60

約数和(自身を含む): 59644000

約数和(自身を除く): 38467216

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 199, 398, 597, 739, 796, 1194, 1478, 1592, 1791, 2217, 2388, 2956, 3184, 3582, 4434, 4776, 5912, 6651, 7164, 8868, 9552, 11824, 13302, 14328, 17736, 26604, 28656, 35472, 53208, 106416, 147061, 294122, 441183, 588244, 882366, 1176488, 1323549, 1764732, 2352976, 2647098, 3529464, 5294196, 7058928, 10588392, 21176784]

約数ペア:

[(1, 21176784), (2, 10588392), (3, 7058928), (4, 5294196), (6, 3529464), (8, 2647098), (9, 2352976), (12, 1764732), (16, 1323549), (18, 1176488), (24, 882366), (36, 588244), (48, 441183), (72, 294122), (144, 147061), (199, 106416), (398, 53208), (597, 35472), (739, 28656), (796, 26604), (1194, 17736), (1478, 14328), (1592, 13302), (1791, 11824), (2217, 9552), (2388, 8868), (2956, 7164), (3184, 6651), (3582, 5912), (4434, 4776)]