27981646

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 54000432

約数和(自身を除く): 26018786

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 101, 154, 202, 257, 514, 539, 707, 1078, 1111, 1414, 1799, 2222, 2827, 3598, 4949, 5654, 7777, 9898, 12593, 15554, 19789, 25186, 25957, 39578, 51914, 54439, 108878, 138523, 181699, 277046, 285527, 363398, 571054, 1271893, 1998689, 2543786, 3997378, 13990823, 27981646]

約数ペア:

[(1, 27981646), (2, 13990823), (7, 3997378), (11, 2543786), (14, 1998689), (22, 1271893), (49, 571054), (77, 363398), (98, 285527), (101, 277046), (154, 181699), (202, 138523), (257, 108878), (514, 54439), (539, 51914), (707, 39578), (1078, 25957), (1111, 25186), (1414, 19789), (1799, 15554), (2222, 12593), (2827, 9898), (3598, 7777), (4949, 5654)]