210518757

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{38791}}^1$

素因数の和:38870

約数の個数: 20

約数和(自身を含む): 319180576

約数和(自身を除く): 108661819

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 38791, 116373, 349119, 1047357, 2598997, 3142071, 7796991, 23390973, 70172919, 210518757]

約数ペア:

[(1, 210518757), (3, 70172919), (9, 23390973), (27, 7796991), (67, 3142071), (81, 2598997), (201, 1047357), (603, 349119), (1809, 116373), (5427, 38791)]