21291408

素因数分解:

$2^4\times 3^2\times {\mathrm{199}}^1\times {\mathrm{743}}^1$

素因数の和:956

約数の個数: 60

約数和(自身を含む): 59966400

約数和(自身を除く): 38674992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 199, 398, 597, 743, 796, 1194, 1486, 1592, 1791, 2229, 2388, 2972, 3184, 3582, 4458, 4776, 5944, 6687, 7164, 8916, 9552, 11888, 13374, 14328, 17832, 26748, 28656, 35664, 53496, 106992, 147857, 295714, 443571, 591428, 887142, 1182856, 1330713, 1774284, 2365712, 2661426, 3548568, 5322852, 7097136, 10645704, 21291408]

約数ペア:

[(1, 21291408), (2, 10645704), (3, 7097136), (4, 5322852), (6, 3548568), (8, 2661426), (9, 2365712), (12, 1774284), (16, 1330713), (18, 1182856), (24, 887142), (36, 591428), (48, 443571), (72, 295714), (144, 147857), (199, 106992), (398, 53496), (597, 35664), (743, 28656), (796, 26748), (1194, 17832), (1486, 14328), (1592, 13374), (1791, 11888), (2229, 9552), (2388, 8916), (2972, 7164), (3184, 6687), (3582, 5944), (4458, 4776)]