20686917138

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{189347}}^1$

素因数の和:189622

約数の個数: 32

約数和(自身を含む): 41989812480

約数和(自身を除く): 21302895342

約数列:

[1, 2, 3, 6, 131, 139, 262, 278, 393, 417, 786, 834, 18209, 36418, 54627, 109254, 189347, 378694, 568041, 1136082, 24804457, 26319233, 49608914, 52638466, 74413371, 78957699, 148826742, 157915398, 3447819523, 6895639046, 10343458569, 20686917138]

約数ペア:

[(1, 20686917138), (2, 10343458569), (3, 6895639046), (6, 3447819523), (131, 157915398), (139, 148826742), (262, 78957699), (278, 74413371), (393, 52638466), (417, 49608914), (786, 26319233), (834, 24804457), (18209, 1136082), (36418, 568041), (54627, 378694), (109254, 189347)]