39880221

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 58544640

約数和(自身を除く): 18664419

約数列:

[1, 3, 19, 43, 53, 57, 129, 159, 307, 817, 921, 1007, 2279, 2451, 3021, 5833, 6837, 13201, 16271, 17499, 39603, 43301, 48813, 129903, 250819, 309149, 699653, 752457, 927447, 2098959, 13293407, 39880221]

約数ペア:

[(1, 39880221), (3, 13293407), (19, 2098959), (43, 927447), (53, 752457), (57, 699653), (129, 309149), (159, 250819), (307, 129903), (817, 48813), (921, 43301), (1007, 39603), (2279, 17499), (2451, 16271), (3021, 13201), (5833, 6837)]