19158447

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 32085504

約数和(自身を除く): 12927057

約数列:

[1, 3, 7, 11, 21, 33, 77, 197, 231, 421, 591, 1263, 1379, 2167, 2947, 4137, 4631, 6501, 8841, 13893, 15169, 32417, 45507, 82937, 97251, 248811, 580559, 912307, 1741677, 2736921, 6386149, 19158447]

約数ペア:

[(1, 19158447), (3, 6386149), (7, 2736921), (11, 1741677), (21, 912307), (33, 580559), (77, 248811), (197, 97251), (231, 82937), (421, 45507), (591, 32417), (1263, 15169), (1379, 13893), (2167, 8841), (2947, 6501), (4137, 4631)]