31224543

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 50534400

約数和(自身を除く): 19309857

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 399, 417, 563, 973, 1689, 2641, 2919, 3941, 7923, 10697, 11823, 18487, 32091, 55461, 74879, 78257, 224637, 234771, 547799, 1486883, 1643397, 4460649, 10408181, 31224543]

約数ペア:

[(1, 31224543), (3, 10408181), (7, 4460649), (19, 1643397), (21, 1486883), (57, 547799), (133, 234771), (139, 224637), (399, 78257), (417, 74879), (563, 55461), (973, 32091), (1689, 18487), (2641, 11823), (2919, 10697), (3941, 7923)]