218635215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{883}}^1\times {\mathrm{971}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 371195136

約数和(自身を除く): 152559921

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 883, 971, 2649, 2913, 4415, 4855, 13245, 14565, 15011, 16507, 45033, 49521, 75055, 82535, 225165, 247605, 857393, 2572179, 4286965, 12860895, 14575681, 43727043, 72878405, 218635215]

約数ペア:

[(1, 218635215), (3, 72878405), (5, 43727043), (15, 14575681), (17, 12860895), (51, 4286965), (85, 2572179), (255, 857393), (883, 247605), (971, 225165), (2649, 82535), (2913, 75055), (4415, 49521), (4855, 45033), (13245, 16507), (14565, 15011)]