20778968

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7001}}^1$

素因数の和:7067

約数の個数: 32

約数和(自身を含む): 45372960

約数和(自身を除く): 24593992

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7001, 14002, 28004, 49007, 56008, 98014, 196028, 371053, 392056, 742106, 1484212, 2597371, 2968424, 5194742, 10389484, 20778968]

約数ペア:

[(1, 20778968), (2, 10389484), (4, 5194742), (7, 2968424), (8, 2597371), (14, 1484212), (28, 742106), (53, 392056), (56, 371053), (106, 196028), (212, 98014), (371, 56008), (424, 49007), (742, 28004), (1484, 14002), (2968, 7001)]