21315476

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1889}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 26100844

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 1889, 2821, 3778, 5642, 7556, 11284, 13223, 24557, 26446, 49114, 52892, 58559, 98228, 117118, 171899, 234236, 343798, 409913, 687596, 761267, 819826, 1522534, 1639652, 3045068, 5328869, 10657738, 21315476]

約数ペア:

[(1, 21315476), (2, 10657738), (4, 5328869), (7, 3045068), (13, 1639652), (14, 1522534), (26, 819826), (28, 761267), (31, 687596), (52, 409913), (62, 343798), (91, 234236), (124, 171899), (182, 117118), (217, 98228), (364, 58559), (403, 52892), (434, 49114), (806, 26446), (868, 24557), (1612, 13223), (1889, 11284), (2821, 7556), (3778, 5642)]