208335897

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 388189152

約数和(自身を除く): 179853255

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 67, 77, 99, 147, 201, 231, 441, 469, 539, 603, 641, 693, 737, 1407, 1617, 1923, 2211, 3283, 4221, 4487, 4851, 5159, 5769, 6633, 7051, 9849, 13461, 15477, 21153, 29547, 31409, 36113, 40383, 42947, 46431, 49357, 63459, 94227, 108339, 128841, 148071, 282681, 300629, 325017, 345499, 386523, 444213, 472417, 901887, 1036497, 1417251, 2104403, 2705661, 3109491, 3306919, 4251753, 6313209, 9920757, 18939627, 23148433, 29762271, 69445299, 208335897]

約数ペア:

[(1, 208335897), (3, 69445299), (7, 29762271), (9, 23148433), (11, 18939627), (21, 9920757), (33, 6313209), (49, 4251753), (63, 3306919), (67, 3109491), (77, 2705661), (99, 2104403), (147, 1417251), (201, 1036497), (231, 901887), (441, 472417), (469, 444213), (539, 386523), (603, 345499), (641, 325017), (693, 300629), (737, 282681), (1407, 148071), (1617, 128841), (1923, 108339), (2211, 94227), (3283, 63459), (4221, 49357), (4487, 46431), (4851, 42947), (5159, 40383), (5769, 36113), (6633, 31409), (7051, 29547), (9849, 21153), (13461, 15477)]