20367928

素因数分解:

$2^3\times 7^2\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 24447752

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 223, 233, 392, 446, 466, 892, 932, 1561, 1631, 1784, 1864, 3122, 3262, 6244, 6524, 10927, 11417, 12488, 13048, 21854, 22834, 43708, 45668, 51959, 87416, 91336, 103918, 207836, 363713, 415672, 727426, 1454852, 2545991, 2909704, 5091982, 10183964, 20367928]

約数ペア:

[(1, 20367928), (2, 10183964), (4, 5091982), (7, 2909704), (8, 2545991), (14, 1454852), (28, 727426), (49, 415672), (56, 363713), (98, 207836), (196, 103918), (223, 91336), (233, 87416), (392, 51959), (446, 45668), (466, 43708), (892, 22834), (932, 21854), (1561, 13048), (1631, 12488), (1784, 11417), (1864, 10927), (3122, 6524), (3262, 6244)]