20777874

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 46520064

約数和(自身を除く): 25742190

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 169, 186, 338, 403, 507, 661, 806, 1014, 1209, 1322, 1983, 2418, 3966, 5239, 8593, 10478, 15717, 17186, 20491, 25779, 31434, 40982, 51558, 61473, 111709, 122946, 223418, 266383, 335127, 532766, 670254, 799149, 1598298, 3462979, 6925958, 10388937, 20777874]

約数ペア:

[(1, 20777874), (2, 10388937), (3, 6925958), (6, 3462979), (13, 1598298), (26, 799149), (31, 670254), (39, 532766), (62, 335127), (78, 266383), (93, 223418), (169, 122946), (186, 111709), (338, 61473), (403, 51558), (507, 40982), (661, 31434), (806, 25779), (1014, 20491), (1209, 17186), (1322, 15717), (1983, 10478), (2418, 8593), (3966, 5239)]