31978479

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 49109760

約数和(自身を除く): 17131281

約数列:

[1, 3, 13, 17, 39, 51, 139, 221, 347, 417, 663, 1041, 1807, 2363, 4511, 5421, 5899, 7089, 13533, 17697, 30719, 48233, 76687, 92157, 144699, 230061, 627029, 819961, 1881087, 2459883, 10659493, 31978479]

約数ペア:

[(1, 31978479), (3, 10659493), (13, 2459883), (17, 1881087), (39, 819961), (51, 627029), (139, 230061), (221, 144699), (347, 92157), (417, 76687), (663, 48233), (1041, 30719), (1807, 17697), (2363, 13533), (4511, 7089), (5421, 5899)]