20175777

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{587}}^1$

素因数の和:682

約数の個数: 32

約数和(自身を含む): 31987200

約数和(自身を除く): 11811423

約数列:

[1, 3, 9, 19, 27, 57, 67, 171, 201, 513, 587, 603, 1273, 1761, 1809, 3819, 5283, 11153, 11457, 15849, 33459, 34371, 39329, 100377, 117987, 301131, 353961, 747251, 1061883, 2241753, 6725259, 20175777]

約数ペア:

[(1, 20175777), (3, 6725259), (9, 2241753), (19, 1061883), (27, 747251), (57, 353961), (67, 301131), (171, 117987), (201, 100377), (513, 39329), (587, 34371), (603, 33459), (1273, 15849), (1761, 11457), (1809, 11153), (3819, 5283)]