21970143

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1181}}^1$

素因数の和:1256

約数の個数: 32

約数和(自身を含む): 35743680

約数和(自身を除く): 13773537

約数列:

[1, 3, 9, 13, 27, 39, 53, 117, 159, 351, 477, 689, 1181, 1431, 2067, 3543, 6201, 10629, 15353, 18603, 31887, 46059, 62593, 138177, 187779, 414531, 563337, 813709, 1690011, 2441127, 7323381, 21970143]

約数ペア:

[(1, 21970143), (3, 7323381), (9, 2441127), (13, 1690011), (27, 813709), (39, 563337), (53, 414531), (117, 187779), (159, 138177), (351, 62593), (477, 46059), (689, 31887), (1181, 18603), (1431, 15353), (2067, 10629), (3543, 6201)]