21429912

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:856

約数の個数: 64

約数和(自身を含む): 61632000

約数和(自身を除く): 40202088

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 199, 398, 597, 641, 796, 1194, 1282, 1393, 1592, 1923, 2388, 2564, 2786, 3846, 4179, 4487, 4776, 5128, 5572, 7692, 8358, 8974, 11144, 13461, 15384, 16716, 17948, 26922, 33432, 35896, 53844, 107688, 127559, 255118, 382677, 510236, 765354, 892913, 1020472, 1530708, 1785826, 2678739, 3061416, 3571652, 5357478, 7143304, 10714956, 21429912]

約数ペア:

[(1, 21429912), (2, 10714956), (3, 7143304), (4, 5357478), (6, 3571652), (7, 3061416), (8, 2678739), (12, 1785826), (14, 1530708), (21, 1020472), (24, 892913), (28, 765354), (42, 510236), (56, 382677), (84, 255118), (168, 127559), (199, 107688), (398, 53844), (597, 35896), (641, 33432), (796, 26922), (1194, 17948), (1282, 16716), (1393, 15384), (1592, 13461), (1923, 11144), (2388, 8974), (2564, 8358), (2786, 7692), (3846, 5572), (4179, 5128), (4487, 4776)]