20371215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 34338816

約数和(自身を除く): 13967601

約数列:

[1, 3, 5, 15, 23, 69, 115, 137, 345, 411, 431, 685, 1293, 2055, 2155, 3151, 6465, 9453, 9913, 15755, 29739, 47265, 49565, 59047, 148695, 177141, 295235, 885705, 1358081, 4074243, 6790405, 20371215]

約数ペア:

[(1, 20371215), (3, 6790405), (5, 4074243), (15, 1358081), (23, 885705), (69, 295235), (115, 177141), (137, 148695), (345, 59047), (411, 49565), (431, 47265), (685, 29739), (1293, 15755), (2055, 9913), (2155, 9453), (3151, 6465)]