211249779

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 334430208

約数和(自身を除く): 123180429

約数列:

[1, 3, 13, 23, 31, 39, 69, 71, 93, 107, 213, 299, 321, 403, 713, 897, 923, 1209, 1391, 1633, 2139, 2201, 2461, 2769, 3317, 4173, 4899, 6603, 7383, 7597, 9269, 9951, 21229, 22791, 27807, 28613, 31993, 43121, 50623, 63687, 76291, 85839, 95979, 98761, 129363, 151869, 174731, 228873, 235507, 296283, 524193, 658099, 706521, 991783, 1974297, 2271503, 2975349, 3061591, 5416661, 6814509, 9184773, 16249983, 70416593, 211249779]

約数ペア:

[(1, 211249779), (3, 70416593), (13, 16249983), (23, 9184773), (31, 6814509), (39, 5416661), (69, 3061591), (71, 2975349), (93, 2271503), (107, 1974297), (213, 991783), (299, 706521), (321, 658099), (403, 524193), (713, 296283), (897, 235507), (923, 228873), (1209, 174731), (1391, 151869), (1633, 129363), (2139, 98761), (2201, 95979), (2461, 85839), (2769, 76291), (3317, 63687), (4173, 50623), (4899, 43121), (6603, 31993), (7383, 28613), (7597, 27807), (9269, 22791), (9951, 21229)]