21904008

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{541}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 62958720

約数和(自身を除く): 41054712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 241, 482, 541, 723, 964, 1082, 1446, 1623, 1687, 1928, 2164, 2892, 3246, 3374, 3787, 4328, 5061, 5784, 6492, 6748, 7574, 10122, 11361, 12984, 13496, 15148, 20244, 22722, 30296, 40488, 45444, 90888, 130381, 260762, 391143, 521524, 782286, 912667, 1043048, 1564572, 1825334, 2738001, 3129144, 3650668, 5476002, 7301336, 10952004, 21904008]

約数ペア:

[(1, 21904008), (2, 10952004), (3, 7301336), (4, 5476002), (6, 3650668), (7, 3129144), (8, 2738001), (12, 1825334), (14, 1564572), (21, 1043048), (24, 912667), (28, 782286), (42, 521524), (56, 391143), (84, 260762), (168, 130381), (241, 90888), (482, 45444), (541, 40488), (723, 30296), (964, 22722), (1082, 20244), (1446, 15148), (1623, 13496), (1687, 12984), (1928, 11361), (2164, 10122), (2892, 7574), (3246, 6748), (3374, 6492), (3787, 5784), (4328, 5061)]