19193811

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 31761408

約数和(自身を除く): 12567597

約数列:

[1, 3, 7, 13, 21, 39, 91, 167, 273, 421, 501, 1169, 1263, 2171, 2947, 3507, 5473, 6513, 8841, 15197, 16419, 38311, 45591, 70307, 114933, 210921, 492149, 913991, 1476447, 2741973, 6397937, 19193811]

約数ペア:

[(1, 19193811), (3, 6397937), (7, 2741973), (13, 1476447), (21, 913991), (39, 492149), (91, 210921), (167, 114933), (273, 70307), (421, 45591), (501, 38311), (1169, 16419), (1263, 15197), (2171, 8841), (2947, 6513), (3507, 5473)]