19603888

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:385

約数の個数: 40

約数和(自身を含む): 39283200

約数和(自身を除く): 19679312

約数列:

[1, 2, 4, 8, 16, 47, 94, 131, 188, 199, 262, 376, 398, 524, 752, 796, 1048, 1592, 2096, 3184, 6157, 9353, 12314, 18706, 24628, 26069, 37412, 49256, 52138, 74824, 98512, 104276, 149648, 208552, 417104, 1225243, 2450486, 4900972, 9801944, 19603888]

約数ペア:

[(1, 19603888), (2, 9801944), (4, 4900972), (8, 2450486), (16, 1225243), (47, 417104), (94, 208552), (131, 149648), (188, 104276), (199, 98512), (262, 74824), (376, 52138), (398, 49256), (524, 37412), (752, 26069), (796, 24628), (1048, 18706), (1592, 12314), (2096, 9353), (3184, 6157)]