61978203

素因数分解:

$3^4\times 7^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:689

約数の個数: 40

約数和(自身を含む): 106460640

約数和(自身を除く): 44482437

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 281, 389, 567, 843, 1167, 1967, 2529, 2723, 3501, 5901, 7587, 8169, 10503, 17703, 22761, 24507, 31509, 53109, 73521, 109309, 159327, 220563, 327927, 765163, 983781, 2295489, 2951343, 6886467, 8854029, 20659401, 61978203]

約数ペア:

[(1, 61978203), (3, 20659401), (7, 8854029), (9, 6886467), (21, 2951343), (27, 2295489), (63, 983781), (81, 765163), (189, 327927), (281, 220563), (389, 159327), (567, 109309), (843, 73521), (1167, 53109), (1967, 31509), (2529, 24507), (2723, 22761), (3501, 17703), (5901, 10503), (7587, 8169)]