16781115

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 29546496

約数和(自身を除く): 12765381

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1831, 1833, 3055, 5493, 9155, 9165, 23803, 27465, 71409, 86057, 119015, 258171, 357045, 430285, 1118741, 1290855, 3356223, 5593705, 16781115]

約数ペア:

[(1, 16781115), (3, 5593705), (5, 3356223), (13, 1290855), (15, 1118741), (39, 430285), (47, 357045), (65, 258171), (141, 119015), (195, 86057), (235, 71409), (611, 27465), (705, 23803), (1831, 9165), (1833, 9155), (3055, 5493)]