78453921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1489}}^1$

素因数の和:1705

約数の個数: 32

約数和(自身を含む): 129498880

約数和(自身を除く): 51044959

約数列:

[1, 3, 7, 13, 21, 39, 91, 193, 273, 579, 1351, 1489, 2509, 4053, 4467, 7527, 10423, 17563, 19357, 31269, 52689, 58071, 135499, 287377, 406497, 862131, 2011639, 3735901, 6034917, 11207703, 26151307, 78453921]

約数ペア:

[(1, 78453921), (3, 26151307), (7, 11207703), (13, 6034917), (21, 3735901), (39, 2011639), (91, 862131), (193, 406497), (273, 287377), (579, 135499), (1351, 58071), (1489, 52689), (2509, 31269), (4053, 19357), (4467, 17563), (7527, 10423)]