20662395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 39481344

約数和(自身を除く): 18818949

約数列:

[1, 3, 5, 13, 15, 17, 23, 39, 51, 65, 69, 85, 115, 195, 221, 255, 271, 299, 345, 391, 663, 813, 897, 1105, 1173, 1355, 1495, 1955, 3315, 3523, 4065, 4485, 4607, 5083, 5865, 6233, 10569, 13821, 15249, 17615, 18699, 23035, 25415, 31165, 52845, 59891, 69105, 76245, 81029, 93495, 105961, 179673, 243087, 299455, 317883, 405145, 529805, 898365, 1215435, 1377493, 1589415, 4132479, 6887465, 20662395]

約数ペア:

[(1, 20662395), (3, 6887465), (5, 4132479), (13, 1589415), (15, 1377493), (17, 1215435), (23, 898365), (39, 529805), (51, 405145), (65, 317883), (69, 299455), (85, 243087), (115, 179673), (195, 105961), (221, 93495), (255, 81029), (271, 76245), (299, 69105), (345, 59891), (391, 52845), (663, 31165), (813, 25415), (897, 23035), (1105, 18699), (1173, 17615), (1355, 15249), (1495, 13821), (1955, 10569), (3315, 6233), (3523, 5865), (4065, 5083), (4485, 4607)]