21398608

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1579}}^1$

素因数の和:1616

約数の個数: 60

約数和(自身を含む): 52114720

約数和(自身を除く): 30716112

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 121, 154, 176, 242, 308, 484, 616, 847, 968, 1232, 1579, 1694, 1936, 3158, 3388, 6316, 6776, 11053, 12632, 13552, 17369, 22106, 25264, 34738, 44212, 69476, 88424, 121583, 138952, 176848, 191059, 243166, 277904, 382118, 486332, 764236, 972664, 1337413, 1528472, 1945328, 2674826, 3056944, 5349652, 10699304, 21398608]

約数ペア:

[(1, 21398608), (2, 10699304), (4, 5349652), (7, 3056944), (8, 2674826), (11, 1945328), (14, 1528472), (16, 1337413), (22, 972664), (28, 764236), (44, 486332), (56, 382118), (77, 277904), (88, 243166), (112, 191059), (121, 176848), (154, 138952), (176, 121583), (242, 88424), (308, 69476), (484, 44212), (616, 34738), (847, 25264), (968, 22106), (1232, 17369), (1579, 13552), (1694, 12632), (1936, 11053), (3158, 6776), (3388, 6316)]