18813303327

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{300931}}^1$

素因数の和:301183

約数の個数: 32

約数和(自身を含む): 31008033280

約数和(自身を除く): 12194729953

約数列:

[1, 3, 7, 13, 21, 39, 91, 229, 273, 687, 1603, 2977, 4809, 8931, 20839, 62517, 300931, 902793, 2106517, 3912103, 6319551, 11736309, 27384721, 68913199, 82154163, 206739597, 482392393, 895871587, 1447177179, 2687614761, 6271101109, 18813303327]

約数ペア:

[(1, 18813303327), (3, 6271101109), (7, 2687614761), (13, 1447177179), (21, 895871587), (39, 482392393), (91, 206739597), (229, 82154163), (273, 68913199), (687, 27384721), (1603, 11736309), (2977, 6319551), (4809, 3912103), (8931, 2106517), (20839, 902793), (62517, 300931)]