20983404

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4339}}^1$

素因数の和:4390

約数の個数: 48

約数和(自身を含む): 54440960

約数和(自身を除く): 33457556

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4339, 4836, 8678, 13017, 17356, 26034, 52068, 56407, 112814, 134509, 169221, 225628, 269018, 338442, 403527, 538036, 676884, 807054, 1614108, 1748617, 3497234, 5245851, 6994468, 10491702, 20983404]

約数ペア:

[(1, 20983404), (2, 10491702), (3, 6994468), (4, 5245851), (6, 3497234), (12, 1748617), (13, 1614108), (26, 807054), (31, 676884), (39, 538036), (52, 403527), (62, 338442), (78, 269018), (93, 225628), (124, 169221), (156, 134509), (186, 112814), (372, 56407), (403, 52068), (806, 26034), (1209, 17356), (1612, 13017), (2418, 8678), (4339, 4836)]