199914897

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{4091}}^1$

素因数の和:4293

約数の個数: 32

約数和(自身を含む): 329978880

約数和(自身を除く): 130063983

約数列:

[1, 3, 7, 13, 21, 39, 91, 179, 273, 537, 1253, 2327, 3759, 4091, 6981, 12273, 16289, 28637, 48867, 53183, 85911, 159549, 372281, 732289, 1116843, 2196867, 5126023, 9519757, 15378069, 28559271, 66638299, 199914897]

約数ペア:

[(1, 199914897), (3, 66638299), (7, 28559271), (13, 15378069), (21, 9519757), (39, 5126023), (91, 2196867), (179, 1116843), (273, 732289), (537, 372281), (1253, 159549), (2327, 85911), (3759, 53183), (4091, 48867), (6981, 28637), (12273, 16289)]