18617732

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 20412028

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 89, 124, 178, 217, 241, 356, 434, 482, 623, 868, 964, 1246, 1687, 2492, 2759, 3374, 5518, 6748, 7471, 11036, 14942, 19313, 21449, 29884, 38626, 42898, 52297, 77252, 85796, 104594, 150143, 209188, 300286, 600572, 664919, 1329838, 2659676, 4654433, 9308866, 18617732]

約数ペア:

[(1, 18617732), (2, 9308866), (4, 4654433), (7, 2659676), (14, 1329838), (28, 664919), (31, 600572), (62, 300286), (89, 209188), (124, 150143), (178, 104594), (217, 85796), (241, 77252), (356, 52297), (434, 42898), (482, 38626), (623, 29884), (868, 21449), (964, 19313), (1246, 14942), (1687, 11036), (2492, 7471), (2759, 6748), (3374, 5518)]