308978817

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 506943360

約数和(自身を除く): 197964543

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 361, 371, 399, 769, 1007, 1083, 1113, 2307, 2527, 3021, 5383, 7049, 7581, 14611, 16149, 19133, 21147, 40757, 43833, 57399, 102277, 122271, 133931, 277609, 285299, 306831, 401793, 774383, 832827, 855897, 1943263, 2323149, 5420681, 5829789, 14713277, 16262043, 44139831, 102992939, 308978817]

約数ペア:

[(1, 308978817), (3, 102992939), (7, 44139831), (19, 16262043), (21, 14713277), (53, 5829789), (57, 5420681), (133, 2323149), (159, 1943263), (361, 855897), (371, 832827), (399, 774383), (769, 401793), (1007, 306831), (1083, 285299), (1113, 277609), (2307, 133931), (2527, 122271), (3021, 102277), (5383, 57399), (7049, 43833), (7581, 40757), (14611, 21147), (16149, 19133)]