19951316

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{307}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 43878912

約数和(自身を除く): 23927596

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 211, 307, 308, 422, 614, 844, 1228, 1477, 2149, 2321, 2954, 3377, 4298, 4642, 5908, 6754, 8596, 9284, 13508, 16247, 23639, 32494, 47278, 64777, 64988, 94556, 129554, 259108, 453439, 712547, 906878, 1425094, 1813756, 2850188, 4987829, 9975658, 19951316]

約数ペア:

[(1, 19951316), (2, 9975658), (4, 4987829), (7, 2850188), (11, 1813756), (14, 1425094), (22, 906878), (28, 712547), (44, 453439), (77, 259108), (154, 129554), (211, 94556), (307, 64988), (308, 64777), (422, 47278), (614, 32494), (844, 23639), (1228, 16247), (1477, 13508), (2149, 9284), (2321, 8596), (2954, 6754), (3377, 5908), (4298, 4642)]