215697261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1\times {\mathrm{317}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 316270080

約数和(自身を除く): 100572819

約数列:

[1, 3, 13, 39, 73, 219, 239, 317, 717, 949, 951, 2847, 3107, 4121, 9321, 12363, 17447, 23141, 52341, 69423, 75763, 226811, 227289, 300833, 680433, 902499, 984919, 2954757, 5530699, 16592097, 71899087, 215697261]

約数ペア:

[(1, 215697261), (3, 71899087), (13, 16592097), (39, 5530699), (73, 2954757), (219, 984919), (239, 902499), (317, 680433), (717, 300833), (949, 227289), (951, 226811), (2847, 75763), (3107, 69423), (4121, 52341), (9321, 23141), (12363, 17447)]