21739696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{829}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 46314000

約数和(自身を除く): 24574304

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 149, 176, 298, 596, 829, 1192, 1639, 1658, 2384, 3278, 3316, 6556, 6632, 9119, 13112, 13264, 18238, 26224, 36476, 72952, 123521, 145904, 247042, 494084, 988168, 1358731, 1976336, 2717462, 5434924, 10869848, 21739696]

約数ペア:

[(1, 21739696), (2, 10869848), (4, 5434924), (8, 2717462), (11, 1976336), (16, 1358731), (22, 988168), (44, 494084), (88, 247042), (149, 145904), (176, 123521), (298, 72952), (596, 36476), (829, 26224), (1192, 18238), (1639, 13264), (1658, 13112), (2384, 9119), (3278, 6632), (3316, 6556)]