19137937

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6263663

約数列:

[1, 7, 13, 17, 89, 91, 119, 139, 221, 623, 973, 1157, 1513, 1547, 1807, 2363, 8099, 10591, 12371, 12649, 16541, 19669, 30719, 86597, 137683, 160823, 210307, 215033, 1125761, 1472149, 2733991, 19137937]

約数ペア:

[(1, 19137937), (7, 2733991), (13, 1472149), (17, 1125761), (89, 215033), (91, 210307), (119, 160823), (139, 137683), (221, 86597), (623, 30719), (973, 19669), (1157, 16541), (1513, 12649), (1547, 12371), (1807, 10591), (2363, 8099)]